56712870 has 48 divisors (see below), whose sum is σ = 147880512. Its totient is φ = 15079680.

The previous prime is 56712869. The next prime is 56712923. The reversal of 56712870 is 7821765.

56712870 is a `hidden beast` number, since 567 + 1 + 28 + 70 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40990 + ... + 42350.

It is an arithmetic number, because the mean of its divisors is an integer number (3080844).

Almost surely, 2^56712870 is an apocalyptic number.

56712870 is an abundant number, since it is smaller than the sum of its proper divisors (91167642).

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

56712870 is a wasteful number, since it uses less digits than its factorization.

56712870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 56712870 is about 7530.7947787734. The cubic root of 56712870 is about 384.2028144116.

The spelling of 56712870 in words is "fifty-six million, seven hundred twelve thousand, eight hundred seventy".