57111967 has 24 divisors (see below), whose sum is σ = 69068160. Its totient is φ = 46617120.

The previous prime is 57111949. The next prime is 57111973. The reversal of 57111967 is 76911175.

It is not a de Polignac number, because 57111967 - 2⁷ = 57111839 is a prime.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57111917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 523909 + ... + 524017.

It is an arithmetic number, because the mean of its divisors is an integer number (2877840).

Almost surely, 2^57111967 is an apocalyptic number.

57111967 is a deficient number, since it is larger than the sum of its proper divisors (11956193).

57111967 is a wasteful number, since it uses less digits than its factorization.

57111967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 162 counting only the distinct ones).

The product of its digits is 13230, while the sum is 37.

The square root of 57111967 is about 7557.2459930850. The cubic root of 57111967 is about 385.1019396111.

The spelling of 57111967 in words is "fifty-seven million, one hundred eleven thousand, nine hundred sixty-seven".