57242725 has 12 divisors (see below), whose sum is σ = 74717440. Its totient is φ = 43383600.

The previous prime is 57242719. The next prime is 57242747. The reversal of 57242725 is 52724275.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-57242725 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59781 + ... + 60730.

Almost surely, 2^57242725 is an apocalyptic number.

It is an amenable number.

57242725 is a deficient number, since it is larger than the sum of its proper divisors (17474715).

57242725 is a wasteful number, since it uses less digits than its factorization.

57242725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120540 (or 120535 counting only the distinct ones).

The product of its digits is 39200, while the sum is 34.

The square root of 57242725 is about 7565.8922144054. The cubic root of 57242725 is about 385.3956129072.

The spelling of 57242725 in words is "fifty-seven million, two hundred forty-two thousand, seven hundred twenty-five".