57139372 has 6 divisors (see below), whose sum is σ = 99993908. Its totient is φ = 28569684.

The previous prime is 57139351. The next prime is 57139373. The reversal of 57139372 is 27393175.

It is not an unprimeable number, because it can be changed into a prime (57139373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7142418 + ... + 7142425.

Almost surely, 2^57139372 is an apocalyptic number.

It is an amenable number.

57139372 is a deficient number, since it is larger than the sum of its proper divisors (42854536).

57139372 is a wasteful number, since it uses less digits than its factorization.

57139372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14284847 (or 14284845 counting only the distinct ones).

The product of its digits is 39690, while the sum is 37.

The square root of 57139372 is about 7559.0589361375. The cubic root of 57139372 is about 385.1635264179.

The spelling of 57139372 in words is "fifty-seven million, one hundred thirty-nine thousand, three hundred seventy-two".