56731564432 has 20 divisors (see below), whose sum is σ = 109926824476. Its totient is φ = 28363351680.

The previous prime is 56731564429. The next prime is 56731564441. The reversal of 56731564432 is 23446513765.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4709253376 + 52022311056 = 68624^2 + 228084^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48682 + ... + 340342.

Almost surely, 2^56731564432 is an apocalyptic number.

It is an amenable number.

56731564432 is a deficient number, since it is larger than the sum of its proper divisors (53195260044).

56731564432 is a wasteful number, since it uses less digits than its factorization.

56731564432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303826 (or 303820 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 46.

The spelling of 56731564432 in words is "fifty-six billion, seven hundred thirty-one million, five hundred sixty-four thousand, four hundred thirty-two".