57945855 has 32 divisors (see below), whose sum is σ = 105546240. Its totient is φ = 26871680.

The previous prime is 57945803. The next prime is 57945859. The reversal of 57945855 is 55854975.

It is a happy number.

It is not a de Polignac number, because 57945855 - 2²⁰ = 56897279 is a prime.

It is a super-2 number, since 2×57945855² = 6715444223362050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57945859) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3840 + ... + 11429.

It is an arithmetic number, because the mean of its divisors is an integer number (3298320).

Almost surely, 2^57945855 is an apocalyptic number.

57945855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

57945855 is a deficient number, since it is larger than the sum of its proper divisors (47600385).

57945855 is a wasteful number, since it uses less digits than its factorization.

57945855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15311.

The product of its digits is 1260000, while the sum is 48.

The square root of 57945855 is about 7612.2174824423. The cubic root of 57945855 is about 386.9671733335.

The spelling of 57945855 in words is "fifty-seven million, nine hundred forty-five thousand, eight hundred fifty-five".