57085579 has 4 divisors (see below), whose sum is σ = 57727080. Its totient is φ = 56444080.

The previous prime is 57085577. The next prime is 57085591. The reversal of 57085579 is 97558075.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57085579 - 2¹ = 57085577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57085577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320617 + ... + 320794.

It is an arithmetic number, because the mean of its divisors is an integer number (14431770).

Almost surely, 2^57085579 is an apocalyptic number.

57085579 is a deficient number, since it is larger than the sum of its proper divisors (641501).

57085579 is an equidigital number, since it uses as much as digits as its factorization.

57085579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641500.

The product of its (nonzero) digits is 441000, while the sum is 46.

The square root of 57085579 is about 7555.4999172788. The cubic root of 57085579 is about 385.0426196704.

The spelling of 57085579 in words is "fifty-seven million, eighty-five thousand, five hundred seventy-nine".