57642085 has 4 divisors (see below), whose sum is σ = 69170508. Its totient is φ = 46113664.

The previous prime is 57642073. The next prime is 57642107. The reversal of 57642085 is 58024675.

It is a happy number.

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 35070084 + 22572001 = 5922^2 + 4751^2 .

It is a cyclic number.

It is not a de Polignac number, because 57642085 - 2⁷ = 57641957 is a prime.

It is a Duffinian 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, 5764204 + ... + 5764213.

It is an arithmetic number, because the mean of its divisors is an integer number (17292627).

Almost surely, 2^57642085 is an apocalyptic number.

It is an amenable number.

57642085 is a deficient number, since it is larger than the sum of its proper divisors (11528423).

57642085 is a wasteful number, since it uses less digits than its factorization.

57642085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11528422.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 57642085 is about 7592.2384709649. The cubic root of 57642085 is about 386.2897879367.

The spelling of 57642085 in words is "fifty-seven million, six hundred forty-two thousand, eighty-five".