56699972 has 24 divisors (see below), whose sum is σ = 116039616. Its totient is φ = 23734368.

The previous prime is 56699957. The next prime is 56699987. The reversal of 56699972 is 27999665.

It is an interprime number because it is at equal distance from previous prime (56699957) and next prime (56699987).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22343 + ... + 24750.

It is an arithmetic number, because the mean of its divisors is an integer number (4834984).

Almost surely, 2^56699972 is an apocalyptic number.

It is an amenable number.

56699972 is an abundant number, since it is smaller than the sum of its proper divisors (59339644).

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

56699972 is a wasteful number, since it uses less digits than its factorization.

56699972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47147 (or 47145 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 53.

The square root of 56699972 is about 7529.9383795619. The cubic root of 56699972 is about 384.1736862578.

The spelling of 56699972 in words is "fifty-six million, six hundred ninety-nine thousand, nine hundred seventy-two".