56100870 has 64 divisors (see below), whose sum is σ = 170979840. Its totient is φ = 12822624.

The previous prime is 56100839. The next prime is 56100893. The reversal of 56100870 is 7800165.

It is a super-2 number, since 2×56100870² = 6294615229513800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12952 + ... + 16731.

It is an arithmetic number, because the mean of its divisors is an integer number (2671560).

Almost surely, 2^56100870 is an apocalyptic number.

56100870 is an abundant number, since it is smaller than the sum of its proper divisors (114878970).

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

56100870 is a wasteful number, since it uses less digits than its factorization.

56100870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29706 (or 29700 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 56100870 is about 7490.0514016928. The cubic root of 56100870 is about 382.8158099228.

The spelling of 56100870 in words is "fifty-six million, one hundred thousand, eight hundred seventy".