57505707 has 56 divisors (see below), whose sum is σ = 100730880. Its totient is φ = 32134320.

The previous prime is 57505703. The next prime is 57505709. The reversal of 57505707 is 70750575.

It is not a de Polignac number, because 57505707 - 2² = 57505703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57505703) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 300982 + ... + 301172.

Almost surely, 2^57505707 is an apocalyptic number.

57505707 is a deficient number, since it is larger than the sum of its proper divisors (43225173).

57505707 is an equidigital number, since it uses as much as digits as its factorization.

57505707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 42875, while the sum is 36.

The square root of 57505707 is about 7583.2517431508. The cubic root of 57505707 is about 385.9849005700.

The spelling of 57505707 in words is "fifty-seven million, five hundred five thousand, seven hundred seven".