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54121251153 = 3177114946493
BaseRepresentation
bin110010011001111000…
…001100000101010001
312011200210200102101110
4302121320030011101
51341320020014103
640510222123533
73624114021144
oct623170140521
9164623612343
1054121251153
1120a53043042
12a5a51205a9
135146835988
142895c0805b
15161b5bb403
hexc99e0c151

54121251153 has 16 divisors (see below), whose sum is σ = 77482624896. Its totient is φ = 33480142080.

The previous prime is 54121251143. The next prime is 54121251181. The reversal of 54121251153 is 35115212145.

It is not a de Polignac number, because 54121251153 - 24 = 54121251137 is a prime.

It is a super-2 number, since 2×541212511532 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54121251153.

It is not an unprimeable number, because it can be changed into a prime (54121251103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7469626 + ... + 7476867.

It is an arithmetic number, because the mean of its divisors is an integer number (4842664056).

Almost surely, 254121251153 is an apocalyptic number.

It is an amenable number.

54121251153 is a deficient number, since it is larger than the sum of its proper divisors (23361373743).

54121251153 is a wasteful number, since it uses less digits than its factorization.

54121251153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14946584.

The product of its digits is 6000, while the sum is 30.

Adding to 54121251153 its reverse (35115212145), we get a palindrome (89236463298).

The spelling of 54121251153 in words is "fifty-four billion, one hundred twenty-one million, two hundred fifty-one thousand, one hundred fifty-three".

Divisors: 1 3 17 51 71 213 1207 3621 14946493 44839479 254090381 762271143 1061201003 3183603009 18040417051 54121251153