57005756 has 12 divisors (see below), whose sum is σ = 99976968. Its totient is φ = 28440912.

The previous prime is 57005747. The next prime is 57005791. The reversal of 57005756 is 65750075.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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, 13391 + ... + 17126.

It is an arithmetic number, because the mean of its divisors is an integer number (8331414).

Almost surely, 2^57005756 is an apocalyptic number.

It is an amenable number.

57005756 is a deficient number, since it is larger than the sum of its proper divisors (42971212).

57005756 is a wasteful number, since it uses less digits than its factorization.

57005756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30988 (or 30986 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 35.

The square root of 57005756 is about 7550.2156260600. The cubic root of 57005756 is about 384.8630670615.

The spelling of 57005756 in words is "fifty-seven million, five thousand, seven hundred fifty-six".