57057057 has 12 divisors (see below), whose sum is σ = 86753680. Its totient is φ = 36035928.

The previous prime is 57057047. The next prime is 57057079. The reversal of 57057057 is 75075075.

It is not a de Polignac number, because 57057057 - 2⁴ = 57057041 is a prime.

It is a Duffinian number.

57057057 is a modest number, since divided by 57057 gives 57 as remainder.

It is not an unprimeable number, because it can be changed into a prime (57057047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166663 + ... + 167004.

Almost surely, 2^57057057 is an apocalyptic number.

57057057 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

57057057 is a deficient number, since it is larger than the sum of its proper divisors (29696623).

57057057 is a wasteful number, since it uses less digits than its factorization.

57057057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333692 (or 333689 counting only the distinct ones).

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

The square root of 57057057 is about 7553.6121822609. The cubic root of 57057057 is about 384.9784819592.

The spelling of 57057057 in words is "fifty-seven million, fifty-seven thousand, fifty-seven".