57122665 has 8 divisors (see below), whose sum is σ = 68690880. Its totient is φ = 45602352.

The previous prime is 57122651. The next prime is 57122687. The reversal of 57122665 is 56622175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57122665 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57122665.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9295 + ... + 14164.

It is an arithmetic number, because the mean of its divisors is an integer number (8586360).

Almost surely, 2^57122665 is an apocalyptic number.

It is an amenable number.

57122665 is a deficient number, since it is larger than the sum of its proper divisors (11568215).

57122665 is a wasteful number, since it uses less digits than its factorization.

57122665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23951.

The product of its digits is 25200, while the sum is 34.

The square root of 57122665 is about 7557.9537574664. The cubic root of 57122665 is about 385.1259833947.

The spelling of 57122665 in words is "fifty-seven million, one hundred twenty-two thousand, six hundred sixty-five".