57245931 has 6 divisors (see below), whose sum is σ = 82688580. Its totient is φ = 38163948.

The previous prime is 57245893. The next prime is 57245941. The reversal of 57245931 is 13954275.

57245931 is a `hidden beast` number, since 572 + 4 + 59 + 31 = 666.

57245931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57245931 - 2¹⁷ = 57114859 is a prime.

It is a super-2 number, since 2×57245931² = 6554193232113522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57245941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3180321 + ... + 3180338.

It is an arithmetic number, because the mean of its divisors is an integer number (13781430).

Almost surely, 2^57245931 is an apocalyptic number.

57245931 is a deficient number, since it is larger than the sum of its proper divisors (25442649).

57245931 is a wasteful number, since it uses less digits than its factorization.

57245931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360665 (or 6360662 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 57245931 is about 7566.1040833443. The cubic root of 57245931 is about 385.4028077387.

The spelling of 57245931 in words is "fifty-seven million, two hundred forty-five thousand, nine hundred thirty-one".