57240516 has 12 divisors (see below), whose sum is σ = 133561232. Its totient is φ = 19080168.

The previous prime is 57240497. The next prime is 57240523. The reversal of 57240516 is 61504275.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2385010 + ... + 2385033.

Almost surely, 2^57240516 is an apocalyptic number.

It is an amenable number.

57240516 is an abundant number, since it is smaller than the sum of its proper divisors (76320716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57240516 is a wasteful number, since it uses less digits than its factorization.

57240516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4770050 (or 4770048 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 57240516 is about 7565.7462288924. The cubic root of 57240516 is about 385.3906553640.

The spelling of 57240516 in words is "fifty-seven million, two hundred forty thousand, five hundred sixteen".