56625631820 has 24 divisors (see below), whose sum is σ = 120091195728. Its totient is φ = 22425992000.

The previous prime is 56625631813. The next prime is 56625631849. The reversal of 56625631820 is 2813652665.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14014226 + ... + 14018265.

It is an arithmetic number, because the mean of its divisors is an integer number (5003799822).

Almost surely, 2^56625631820 is an apocalyptic number.

It is an amenable number.

56625631820 is an abundant number, since it is smaller than the sum of its proper divisors (63465563908).

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

56625631820 is a wasteful number, since it uses less digits than its factorization.

56625631820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28032601 (or 28032599 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 56625631820 in words is "fifty-six billion, six hundred twenty-five million, six hundred thirty-one thousand, eight hundred twenty".