56237457172 has 24 divisors (see below), whose sum is σ = 112220447976. Its totient is φ = 24428940288.

The previous prime is 56237457161. The next prime is 56237457179. The reversal of 56237457172 is 27175473265.

It can be written as a sum of positive squares in 4 ways, for example, as 71301136 + 56166156036 = 8444^2 + 236994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56237457179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31807633 + ... + 31809400.

It is an arithmetic number, because the mean of its divisors is an integer number (4675851999).

Almost surely, 2^56237457172 is an apocalyptic number.

56237457172 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

56237457172 is a deficient number, since it is larger than the sum of its proper divisors (55982990804).

56237457172 is a wasteful number, since it uses less digits than its factorization.

56237457172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63617067 (or 63617065 counting only the distinct ones).

The product of its digits is 2469600, while the sum is 49.

The spelling of 56237457172 in words is "fifty-six billion, two hundred thirty-seven million, four hundred fifty-seven thousand, one hundred seventy-two".