57672157 has 4 divisors (see below), whose sum is σ = 57692736. Its totient is φ = 57651580.

The previous prime is 57672137. The next prime is 57672161. The reversal of 57672157 is 75127675.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57672157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57672107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5269 + ... + 11962.

It is an arithmetic number, because the mean of its divisors is an integer number (14423184).

Almost surely, 2^57672157 is an apocalyptic number.

It is an amenable number.

57672157 is a deficient number, since it is larger than the sum of its proper divisors (20579).

57672157 is a wasteful number, since it uses less digits than its factorization.

57672157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20578.

The product of its digits is 102900, while the sum is 40.

The square root of 57672157 is about 7594.2186563201. The cubic root of 57672157 is about 386.3569523298.

The spelling of 57672157 in words is "fifty-seven million, six hundred seventy-two thousand, one hundred fifty-seven".