57151257 has 16 divisors (see below), whose sum is σ = 80667840. Its totient is φ = 35929152.

The previous prime is 57151231. The next prime is 57151267. The reversal of 57151257 is 75215175.

It is a de Polignac number, because none of the positive numbers 2^k-57151257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57151217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3898 + ... + 11379.

It is an arithmetic number, because the mean of its divisors is an integer number (5041740).

Almost surely, 2^57151257 is an apocalyptic number.

It is an amenable number.

57151257 is a deficient number, since it is larger than the sum of its proper divisors (23516583).

57151257 is a wasteful number, since it uses less digits than its factorization.

57151257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15352.

The product of its digits is 12250, while the sum is 33.

The square root of 57151257 is about 7559.8450380944. The cubic root of 57151257 is about 385.1902292617.

The spelling of 57151257 in words is "fifty-seven million, one hundred fifty-one thousand, two hundred fifty-seven".