57945887 has 4 divisors (see below), whose sum is σ = 57983256. Its totient is φ = 57908520.

The previous prime is 57945871. The next prime is 57945889. The reversal of 57945887 is 78854975.

57945887 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57945887 - 2⁴ = 57945871 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 (57945889) 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, 16253 + ... + 19494.

It is an arithmetic number, because the mean of its divisors is an integer number (14495814).

Almost surely, 2^57945887 is an apocalyptic number.

57945887 is a deficient number, since it is larger than the sum of its proper divisors (37369).

57945887 is a wasteful number, since it uses less digits than its factorization.

57945887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37368.

The product of its digits is 2822400, while the sum is 53.

The square root of 57945887 is about 7612.2195843262. The cubic root of 57945887 is about 386.9672445664.

The spelling of 57945887 in words is "fifty-seven million, nine hundred forty-five thousand, eight hundred eighty-seven".