57005685 has 24 divisors (see below), whose sum is σ = 107793504. Its totient is φ = 27638880.

The previous prime is 57005653. The next prime is 57005699. The reversal of 57005685 is 58650075.

57005685 is a `hidden beast` number, since 570 + 0 + 5 + 6 + 85 = 666.

It is not a de Polignac number, because 57005685 - 2⁵ = 57005653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57087 + ... + 58076.

It is an arithmetic number, because the mean of its divisors is an integer number (4491396).

Almost surely, 2^57005685 is an apocalyptic number.

57005685 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57005685 is a deficient number, since it is larger than the sum of its proper divisors (50787819).

57005685 is a wasteful number, since it uses less digits than its factorization.

57005685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115185 (or 115182 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 57005685 is about 7550.2109242060. The cubic root of 57005685 is about 384.8629072807.

The spelling of 57005685 in words is "fifty-seven million, five thousand, six hundred eighty-five".