57007755 has 48 divisors (see below), whose sum is σ = 113840064. Its totient is φ = 25850880.

The previous prime is 57007739. The next prime is 57007789. The reversal of 57007755 is 55770075.

It is not a de Polignac number, because 57007755 - 2⁴ = 57007739 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42495 + ... + 43815.

It is an arithmetic number, because the mean of its divisors is an integer number (2371668).

Almost surely, 2^57007755 is an apocalyptic number.

57007755 is the 6165-th pentagonal number.

57007755 is a deficient number, since it is larger than the sum of its proper divisors (56832309).

57007755 is a wasteful number, since it uses less digits than its factorization.

57007755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476 (or 1473 counting only the distinct ones).

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

The square root of 57007755 is about 7550.3480052247. The cubic root of 57007755 is about 384.8675656264.

The spelling of 57007755 in words is "fifty-seven million, seven thousand, seven hundred fifty-five".