56618563472 has 10 divisors (see below), whose sum is σ = 109698466758. Its totient is φ = 28309281728.

The previous prime is 56618563459. The next prime is 56618563531. The reversal of 56618563472 is 27436581665.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 56560254976 + 58308496 = 237824^2 + 7636^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1769330093 + ... + 1769330124.

Almost surely, 2^56618563472 is an apocalyptic number.

It is an amenable number.

56618563472 is a deficient number, since it is larger than the sum of its proper divisors (53079903286).

56618563472 is a wasteful number, since it uses less digits than its factorization.

56618563472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538660225 (or 3538660219 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 53.

The spelling of 56618563472 in words is "fifty-six billion, six hundred eighteen million, five hundred sixty-three thousand, four hundred seventy-two".