57491142 has 16 divisors (see below), whose sum is σ = 115253040. Its totient is φ = 19118592.

The previous prime is 57491117. The next prime is 57491171. The reversal of 57491142 is 24119475.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8467 + ... + 13662.

It is an arithmetic number, because the mean of its divisors is an integer number (7203315).

Almost surely, 2^57491142 is an apocalyptic number.

57491142 is an abundant number, since it is smaller than the sum of its proper divisors (57761898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57491142 is a wasteful number, since it uses less digits than its factorization.

57491142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22567.

The product of its digits is 10080, while the sum is 33.

The square root of 57491142 is about 7582.2913423318. The cubic root of 57491142 is about 385.9523105016.

The spelling of 57491142 in words is "fifty-seven million, four hundred ninety-one thousand, one hundred forty-two".