57323157 has 16 divisors (see below), whose sum is σ = 78211008. Its totient is φ = 37331840.

The previous prime is 57323143. The next prime is 57323159. The reversal of 57323157 is 75132375.

It is a cyclic number.

It is not a de Polignac number, because 57323157 - 2⁴ = 57323141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57323159) 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, 44038 + ... + 45320.

It is an arithmetic number, because the mean of its divisors is an integer number (4888188).

Almost surely, 2^57323157 is an apocalyptic number.

It is an amenable number.

57323157 is a deficient number, since it is larger than the sum of its proper divisors (20887851).

57323157 is a wasteful number, since it uses less digits than its factorization.

57323157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620.

The product of its digits is 22050, while the sum is 33.

The square root of 57323157 is about 7571.2057824365. The cubic root of 57323157 is about 385.5760354426.

The spelling of 57323157 in words is "fifty-seven million, three hundred twenty-three thousand, one hundred fifty-seven".