57685037 has 4 divisors (see below), whose sum is σ = 57924636. Its totient is φ = 57445440.

The previous prime is 57685003. The next prime is 57685049. The reversal of 57685037 is 73058675.

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 40883236 + 16801801 = 6394^2 + 4099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57685037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57684985 and 57685003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57685087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119438 + ... + 119919.

It is an arithmetic number, because the mean of its divisors is an integer number (14481159).

Almost surely, 2^57685037 is an apocalyptic number.

It is an amenable number.

57685037 is a deficient number, since it is larger than the sum of its proper divisors (239599).

57685037 is a wasteful number, since it uses less digits than its factorization.

57685037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239598.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 57685037 is about 7595.0666224859. The cubic root of 57685037 is about 386.3857120606.

The spelling of 57685037 in words is "fifty-seven million, six hundred eighty-five thousand, thirty-seven".