57725487 has 8 divisors (see below), whose sum is σ = 85519280. Its totient is φ = 38483640.

The previous prime is 57725483. The next prime is 57725497. The reversal of 57725487 is 78452775.

It is not a de Polignac number, because 57725487 - 2² = 57725483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57725483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068964 + ... + 1069017.

It is an arithmetic number, because the mean of its divisors is an integer number (10689910).

Almost surely, 2^57725487 is an apocalyptic number.

57725487 is a deficient number, since it is larger than the sum of its proper divisors (27793793).

57725487 is a wasteful number, since it uses less digits than its factorization.

57725487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137990 (or 2137984 counting only the distinct ones).

The product of its digits is 548800, while the sum is 45.

The square root of 57725487 is about 7597.7290686099. The cubic root of 57725487 is about 386.4760049748.

The spelling of 57725487 in words is "fifty-seven million, seven hundred twenty-five thousand, four hundred eighty-seven".