53 (number)

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53 (fifty-three) is the natural number following 52 and preceding 54.


Cardinal 53
fifty-three
Ordinal 53rd
fifty-third
Factorization prime
Divisors 1, 53
Roman numeral LIII
Binary 110101
Hexadecimal 35

Contents

[edit] In mathematics

Fifty-three is the 16th prime number. It is also an Eisenstein prime.

53 written in hexadecimal is 35, that is, the same characters used in the decimal representation, but reversed. Three multiples of 53 share this property: 371 = 17316, 5141 = 141516, 99481 = 1849916.

But 53 can not be expressed as the sum of any integer and its base 10 digits, making 53 a self number.

[edit] In science

[edit] Astronomy

[edit] In other fields

Fifty-three is:

[edit] Sports

[edit] Historical years

53 A.D., 53 B.C., 1953, etc.