57438955 has 16 divisors (see below), whose sum is σ = 79856064. Its totient is φ = 38845440.

The previous prime is 57438907. The next prime is 57438973. The reversal of 57438955 is 55983475.

It is a de Polignac number, because none of the positive numbers 2^k-57438955 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8686 + ... + 13795.

It is an arithmetic number, because the mean of its divisors is an integer number (4991004).

Almost surely, 2^57438955 is an apocalyptic number.

57438955 is a deficient number, since it is larger than the sum of its proper divisors (22417109).

57438955 is a wasteful number, since it uses less digits than its factorization.

57438955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22566.

The product of its digits is 756000, while the sum is 46.

The square root of 57438955 is about 7578.8491870468. The cubic root of 57438955 is about 385.8354937186.

The spelling of 57438955 in words is "fifty-seven million, four hundred thirty-eight thousand, nine hundred fifty-five".