56395988 has 12 divisors (see below), whose sum is σ = 107665152. Its totient is φ = 25634520.

The previous prime is 56395979. The next prime is 56395991. The reversal of 56395988 is 88959365.

It is a super-2 number, since 2×56395988² = 6361014924992288, which contains 22 as substring.

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, 640820 + ... + 640907.

It is an arithmetic number, because the mean of its divisors is an integer number (8972096).

Almost surely, 2^56395988 is an apocalyptic number.

It is an amenable number.

56395988 is a deficient number, since it is larger than the sum of its proper divisors (51269164).

56395988 is a wasteful number, since it uses less digits than its factorization.

56395988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281742 (or 1281740 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 53.

The square root of 56395988 is about 7509.7262267009. The cubic root of 56395988 is about 383.4859023855.

The spelling of 56395988 in words is "fifty-six million, three hundred ninety-five thousand, nine hundred eighty-eight".