57656745 has 64 divisors (see below), whose sum is σ = 110592000. Its totient is φ = 28416960.

The previous prime is 57656743. The next prime is 57656761. The reversal of 57656745 is 54765675.

57656745 is a `hidden beast` number, since 576 + 5 + 6 + 74 + 5 = 666.

It is not a de Polignac number, because 57656745 - 2¹ = 57656743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 57656745.

It is not an unprimeable number, because it can be changed into a prime (57656743) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 95956 + ... + 96554.

It is an arithmetic number, because the mean of its divisors is an integer number (1728000).

Almost surely, 2^57656745 is an apocalyptic number.

It is an amenable number.

57656745 is a deficient number, since it is larger than the sum of its proper divisors (52935255).

57656745 is a wasteful number, since it uses less digits than its factorization.

57656745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 661 counting only the distinct ones).

The product of its digits is 882000, while the sum is 45.

The square root of 57656745 is about 7593.2038692504. The cubic root of 57656745 is about 386.3225332724.

The spelling of 57656745 in words is "fifty-seven million, six hundred fifty-six thousand, seven hundred forty-five".