56312137 has 12 divisors (see below), whose sum is σ = 65494336. Its totient is φ = 47428920.

The previous prime is 56312131. The next prime is 56312141. The reversal of 56312137 is 73121365.

It is a de Polignac number, because none of the positive numbers 2^k-56312137 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56312131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23212 + ... + 25522.

Almost surely, 2^56312137 is an apocalyptic number.

It is an amenable number.

56312137 is a deficient number, since it is larger than the sum of its proper divisors (9182199).

56312137 is an equidigital number, since it uses as much as digits as its factorization.

56312137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436 (or 2377 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 56312137 is about 7504.1413232961. The cubic root of 56312137 is about 383.2957492242.

The spelling of 56312137 in words is "fifty-six million, three hundred twelve thousand, one hundred thirty-seven".