57492279 has 18 divisors (see below), whose sum is σ = 89926200. Its totient is φ = 35378928.

The previous prime is 57492257. The next prime is 57492287. The reversal of 57492279 is 97229475.

57492279 is a `hidden beast` number, since 574 + 9 + 2 + 2 + 79 = 666.

It is not a de Polignac number, because 57492279 - 2⁷ = 57492151 is a prime.

It is a super-2 number, since 2×57492279² = 6610724289227682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57492229) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17379 + ... + 20420.

It is an arithmetic number, because the mean of its divisors is an integer number (4995900).

Almost surely, 2^57492279 is an apocalyptic number.

57492279 is a deficient number, since it is larger than the sum of its proper divisors (32433921).

57492279 is a wasteful number, since it uses less digits than its factorization.

57492279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37831 (or 37815 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 57492279 is about 7582.3663192964. The cubic root of 57492279 is about 385.9548548059.

The spelling of 57492279 in words is "fifty-seven million, four hundred ninety-two thousand, two hundred seventy-nine".