57472137 has 12 divisors (see below), whose sum is σ = 85259460. Its totient is φ = 37279008.

The previous prime is 57472133. The next prime is 57472159. The reversal of 57472137 is 73127475.

57472137 is a `hidden beast` number, since 57 + 472 + 137 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51538041 + 5934096 = 7179^2 + 2436^2 .

It is not a de Polignac number, because 57472137 - 2² = 57472133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57472133) 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, 85962 + ... + 86627.

It is an arithmetic number, because the mean of its divisors is an integer number (7104955).

Almost surely, 2^57472137 is an apocalyptic number.

It is an amenable number.

57472137 is a deficient number, since it is larger than the sum of its proper divisors (27787323).

57472137 is a wasteful number, since it uses less digits than its factorization.

57472137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172632 (or 172629 counting only the distinct ones).

The product of its digits is 41160, while the sum is 36.

The square root of 57472137 is about 7581.0379896159. The cubic root of 57472137 is about 385.9097773866.

The spelling of 57472137 in words is "fifty-seven million, four hundred seventy-two thousand, one hundred thirty-seven".