57000157 has 4 divisors (see below), whose sum is σ = 57070240. Its totient is φ = 56930076.

The previous prime is 57000137. The next prime is 57000179. The reversal of 57000157 is 75100075.

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 not a de Polignac number, because 57000157 - 2¹⁹ = 56475869 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 (57000107) 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, 33807 + ... + 35452.

It is an arithmetic number, because the mean of its divisors is an integer number (14267560).

Almost surely, 2^57000157 is an apocalyptic number.

It is an amenable number.

57000157 is a deficient number, since it is larger than the sum of its proper divisors (70083).

57000157 is an equidigital number, since it uses as much as digits as its factorization.

57000157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70082.

The product of its (nonzero) digits is 1225, while the sum is 25.

The square root of 57000157 is about 7549.8448328426. The cubic root of 57000157 is about 384.8504664693.

The spelling of 57000157 in words is "fifty-seven million, one hundred fifty-seven", and thus it is an aban number.