557857157 has 64 divisors (see below), whose sum is σ = 735436800. Its totient is φ = 415134720.

The previous prime is 557857141. The next prime is 557857163. The reversal of 557857157 is 751758755.

It is not a de Polignac number, because 557857157 - 2⁴ = 557857141 is a prime.

It is a super-2 number, since 2×557857157² = 622409215232245298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557857127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4936733 + ... + 4936845.

It is an arithmetic number, because the mean of its divisors is an integer number (11491200).

Almost surely, 2^557857157 is an apocalyptic number.

It is an amenable number.

557857157 is a deficient number, since it is larger than the sum of its proper divisors (177579643).

557857157 is a wasteful number, since it uses less digits than its factorization.

557857157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258.

The product of its digits is 1715000, while the sum is 50.

The square root of 557857157 is about 23618.9999153224. Note that the first 4 decimals coincide. The cubic root of 557857157 is about 823.2043747641.

The spelling of 557857157 in words is "five hundred fifty-seven million, eight hundred fifty-seven thousand, one hundred fifty-seven".