53 ( fifty-three) is the natural number following 52 and preceding 54. In mathematics [edit ] Fifty-three is the 16th prime number. It is also an Eisenstein prime, and a Sophie Germain prime.
The sum of the first 53 primes is 5830, which is divisible by 53, a property shared by few other numbers.
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53 written in
hexadecimal is 35, that is, the same characters used in the decimal representation, but reversed. At least four multiples of 53 share this property: 371 = 173 16, 5141 = 1415 16, 99481 =18499 16, and 8520280 = 820258 16.
53 cannot be expressed as the sum of any integer and its base-10 digits, making 53 a
53 is the smallest prime number that does not divide the order of any
sporadic group. In science [edit ] Astronomy [edit ] In other fields [edit ] Fifty-three is: The racing number of Herbie, a fictional Volkswagen Beetle with a mind of his own, first appearing in the 1969 film The Love Bug The code for international direct dial phone calls to Cuba Municipal Okrug 53, name of Narodny Municipal Okrug, a municipal okrug of Nevsky District of Saint Petersburg, Russia, until January 2013 " 53 Days" is a northeastern USA rock band Part of the title of the 1912 movie North of Fifty Three, remade in 1917 "53 Days" a novel by Georges Perec Ringo Starr’s book "Postcards From the Boys" (2003) contains 53 postcards from fellow Beatles In , and How the Grinch Stole Christmas! the Grinch says he's put up with the who's Christmas cheer for 53 years. its animated TV special Fictional 53rd Precinct in the Bronx was found in the TV comedy " Car 54, Where Are You?" "53rd & 3rd" a song by the Ramones "53 Miles West of Venus” by The B-52's EK53 is an Estonian graffiti crew The number of the department in France called Mayenne Year identifier used on motor vehicles registered in the UK between 1 September 2003 and 28 February 2004 The number of bytes in an Asynchronous Transfer Mode packet. UDP and TCP port number for the Domain Name System protocol. 53-TET (53 tone, equal temperament) is a musical temperament that has a fifth that is closer to pure than our current system. 53 More Things To Do In Zero Gravity is a book mentioned in The Hitchhiker's Guide to the Galaxy. Sports [edit ] References [edit ]