56707872 has 48 divisors (see below), whose sum is σ = 160312320. Its totient is φ = 17448192.

The previous prime is 56707831. The next prime is 56707883. The reversal of 56707872 is 27870765.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

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, 21472 + ... + 23967.

It is an arithmetic number, because the mean of its divisors is an integer number (3339840).

Almost surely, 2^56707872 is an apocalyptic number.

56707872 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

56707872 is an abundant number, since it is smaller than the sum of its proper divisors (103604448).

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

56707872 is a wasteful number, since it uses less digits than its factorization.

56707872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45465 (or 45457 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 56707872 is about 7530.4629339769. The cubic root of 56707872 is about 384.1915277197.

The spelling of 56707872 in words is "fifty-six million, seven hundred seven thousand, eight hundred seventy-two".