57499685 has 4 divisors (see below), whose sum is σ = 68999628. Its totient is φ = 45999744.

The previous prime is 57499669. The next prime is 57499693. The reversal of 57499685 is 58699475.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28058209 + 29441476 = 5297^2 + 5426^2 .

It is a cyclic number.

It is not a de Polignac number, because 57499685 - 2⁴ = 57499669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5749964 + ... + 5749973.

It is an arithmetic number, because the mean of its divisors is an integer number (17249907).

Almost surely, 2^57499685 is an apocalyptic number.

It is an amenable number.

57499685 is a deficient number, since it is larger than the sum of its proper divisors (11499943).

57499685 is a wasteful number, since it uses less digits than its factorization.

57499685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11499942.

The product of its digits is 2721600, while the sum is 53.

The square root of 57499685 is about 7582.8546735382. The cubic root of 57499685 is about 385.9714266481.

The spelling of 57499685 in words is "fifty-seven million, four hundred ninety-nine thousand, six hundred eighty-five".