51034660520 has 32 divisors (see below), whose sum is σ = 118787574600. Its totient is φ = 19709937408.

The previous prime is 51034660483. The next prime is 51034660541. The reversal of 51034660520 is 2506643015.

It can be written as a sum of positive squares in 4 ways, for example, as 48896707876 + 2137952644 = 221126^2 + 46238^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21996539 + ... + 21998858.

Almost surely, 2^51034660520 is an apocalyptic number.

It is an amenable number.

51034660520 is an abundant number, since it is smaller than the sum of its proper divisors (67752914080).

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

51034660520 is a wasteful number, since it uses less digits than its factorization.

51034660520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43995437 (or 43995433 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 51034660520 in words is "fifty-one billion, thirty-four million, six hundred sixty thousand, five hundred twenty".