51632315256 has 64 divisors (see below), whose sum is σ = 139337625600. Its totient is φ = 15894800768.

The previous prime is 51632315239. The next prime is 51632315261. The reversal of 51632315256 is 65251323615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1596696 + ... + 1628711.

It is an arithmetic number, because the mean of its divisors is an integer number (2177150400).

Almost surely, 2^51632315256 is an apocalyptic number.

It is an amenable number.

51632315256 is an abundant number, since it is smaller than the sum of its proper divisors (87705310344).

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

51632315256 is a wasteful number, since it uses less digits than its factorization.

51632315256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225468 (or 3225464 counting only the distinct ones).

The product of its digits is 162000, while the sum is 39.

The spelling of 51632315256 in words is "fifty-one billion, six hundred thirty-two million, three hundred fifteen thousand, two hundred fifty-six".