51518107025400 has 96 divisors (see below), whose sum is σ = 159859845100800. Its totient is φ = 13724939222400.

The previous prime is 51518107025387. The next prime is 51518107025447. The reversal of 51518107025400 is 452070181515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40696866 + ... + 41943665.

It is an arithmetic number, because the mean of its divisors is an integer number (1665206719800).

Almost surely, 2^{51518107025400} is an apocalyptic number.

51518107025400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51518107025400 is an abundant number, since it is smaller than the sum of its proper divisors (108341738075400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51518107025400 is a wasteful number, since it uses less digits than its factorization.

51518107025400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82641589 (or 82641580 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 39.

The spelling of 51518107025400 in words is "fifty-one trillion, five hundred eighteen billion, one hundred seven million, twenty-five thousand, four hundred".