57105689 has 8 divisors (see below), whose sum is σ = 60542208. Its totient is φ = 53768880.

The previous prime is 57105679. The next prime is 57105701. The reversal of 57105689 is 98650175.

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

It is a de Polignac number, because none of the positive numbers 2^k-57105689 is a prime.

It is a super-2 number, since 2×57105689² = 6522119432329442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57105649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23747 + ... + 26040.

It is an arithmetic number, because the mean of its divisors is an integer number (7567776).

Almost surely, 2^57105689 is an apocalyptic number.

It is an amenable number.

57105689 is a deficient number, since it is larger than the sum of its proper divisors (3436519).

57105689 is a wasteful number, since it uses less digits than its factorization.

57105689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49855.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 57105689 is about 7556.8306187184. The cubic root of 57105689 is about 385.0878283912.

The spelling of 57105689 in words is "fifty-seven million, one hundred five thousand, six hundred eighty-nine".