57407172 has 24 divisors (see below), whose sum is σ = 139774656. Its totient is φ = 18303648.

The previous prime is 57407171. The next prime is 57407201. The reversal of 57407172 is 27170475.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (57407171) 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, 103723 + ... + 104274.

It is an arithmetic number, because the mean of its divisors is an integer number (5823944).

Almost surely, 2^57407172 is an apocalyptic number.

It is an amenable number.

57407172 is an abundant number, since it is smaller than the sum of its proper divisors (82367484).

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

57407172 is a wasteful number, since it uses less digits than its factorization.

57407172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208027 (or 208025 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 57407172 is about 7576.7520746029. The cubic root of 57407172 is about 385.7643151253.

The spelling of 57407172 in words is "fifty-seven million, four hundred seven thousand, one hundred seventy-two".