56312140 has 12 divisors (see below), whose sum is σ = 118255536. Its totient is φ = 22524848.

The previous prime is 56312131. The next prime is 56312141. The reversal of 56312140 is 4121365.

It is a super-2 number, since 2×56312140² = 6342114222759200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56312141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407784 + ... + 1407823.

It is an arithmetic number, because the mean of its divisors is an integer number (9854628).

Almost surely, 2^56312140 is an apocalyptic number.

It is an amenable number.

56312140 is an abundant number, since it is smaller than the sum of its proper divisors (61943396).

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

56312140 is a wasteful number, since it uses less digits than its factorization.

56312140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815616 (or 2815614 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 56312140 is about 7504.1415231857. The cubic root of 56312140 is about 383.2957560308.

The spelling of 56312140 in words is "fifty-six million, three hundred twelve thousand, one hundred forty".