56915390620 has 48 divisors (see below), whose sum is σ = 132224472576. Its totient is φ = 20405000000.

The previous prime is 56915390617. The next prime is 56915390639. The reversal of 56915390620 is 2609351965.

It is a hoax number, since the sum of its digits (46) 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1806256 + ... + 1837495.

It is an arithmetic number, because the mean of its divisors is an integer number (2754676512).

Almost surely, 2^56915390620 is an apocalyptic number.

It is an amenable number.

56915390620 is an abundant number, since it is smaller than the sum of its proper divisors (75309081956).

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

56915390620 is a wasteful number, since it uses less digits than its factorization.

56915390620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643842 (or 3643840 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 46.

The spelling of 56915390620 in words is "fifty-six billion, nine hundred fifteen million, three hundred ninety thousand, six hundred twenty".