57512689 has 8 divisors (see below), whose sum is σ = 63611240. Its totient is φ = 51653376.

The previous prime is 57512687. The next prime is 57512701. The reversal of 57512689 is 98621575.

It can be written as a sum of positive squares in 4 ways, for example, as 20205025 + 37307664 = 4495^2 + 6108^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 57512689 - 2¹ = 57512687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57512687) 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, 59304 + ... + 60265.

It is an arithmetic number, because the mean of its divisors is an integer number (7951405).

Almost surely, 2^57512689 is an apocalyptic number.

It is an amenable number.

57512689 is a deficient number, since it is larger than the sum of its proper divisors (6098551).

57512689 is a wasteful number, since it uses less digits than its factorization.

57512689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119619.

The product of its digits is 151200, while the sum is 43.

The square root of 57512689 is about 7583.7120857796. The cubic root of 57512689 is about 386.0005212661. Note that the first 3 decimals are identical.

The spelling of 57512689 in words is "fifty-seven million, five hundred twelve thousand, six hundred eighty-nine".