57057724 has 12 divisors (see below), whose sum is σ = 99954400. Its totient is φ = 28499328.

The previous prime is 57057719. The next prime is 57057727. The reversal of 57057724 is 42775075.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57057727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2709 + ... + 11020.

Almost surely, 2^57057724 is an apocalyptic number.

It is an amenable number.

57057724 is a deficient number, since it is larger than the sum of its proper divisors (42896676).

57057724 is a wasteful number, since it uses less digits than its factorization.

57057724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14772 (or 14770 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 57057724 is about 7553.6563331939. The cubic root of 57057724 is about 384.9799820929.

The spelling of 57057724 in words is "fifty-seven million, fifty-seven thousand, seven hundred twenty-four".