57316805 has 32 divisors (see below), whose sum is σ = 88349184. Its totient is φ = 34695936.

The previous prime is 57316781. The next prime is 57316813. The reversal of 57316805 is 50861375.

It is a cyclic number.

It is not a de Polignac number, because 57316805 - 2¹² = 57312709 is a prime.

It is a super-2 number, since 2×57316805² = 6570432270816050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7727 + ... + 13203.

It is an arithmetic number, because the mean of its divisors is an integer number (2760912).

Almost surely, 2^57316805 is an apocalyptic number.

It is an amenable number.

57316805 is a deficient number, since it is larger than the sum of its proper divisors (31032379).

57316805 is a wasteful number, since it uses less digits than its factorization.

57316805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 57316805 is about 7570.7862867737. The cubic root of 57316805 is about 385.5617929760.

The spelling of 57316805 in words is "fifty-seven million, three hundred sixteen thousand, eight hundred five".