56539554672 has 20 divisors (see below), whose sum is σ = 146060516360. Its totient is φ = 18846518208.

The previous prime is 56539554667. The next prime is 56539554733. The reversal of 56539554672 is 27645593565.

It is a happy number.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 588953647 + ... + 588953742.

It is an arithmetic number, because the mean of its divisors is an integer number (7303025818).

Almost surely, 2^56539554672 is an apocalyptic number.

It is an amenable number.

56539554672 is an abundant number, since it is smaller than the sum of its proper divisors (89520961688).

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

56539554672 is a wasteful number, since it uses less digits than its factorization.

56539554672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177907400 (or 1177907394 counting only the distinct ones).

The product of its digits is 34020000, while the sum is 57.

The spelling of 56539554672 in words is "fifty-six billion, five hundred thirty-nine million, five hundred fifty-four thousand, six hundred seventy-two".