56666754 has 24 divisors (see below), whose sum is σ = 127012860. Its totient is φ = 18237408.

The previous prime is 56666723. The next prime is 56666773. The reversal of 56666754 is 45766665.

It can be written as a sum of positive squares in 2 ways, for example, as 56655729 + 11025 = 7527^2 + 105^2 .

It is a super-2 number, since 2×56666754² = 6422242017793032, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53757 + ... + 54800.

Almost surely, 2^56666754 is an apocalyptic number.

56666754 is an abundant number, since it is smaller than the sum of its proper divisors (70346106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56666754 is a wasteful number, since it uses less digits than its factorization.

56666754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108594 (or 108591 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 56666754 is about 7527.7323278661. The cubic root of 56666754 is about 384.0986481581.

The spelling of 56666754 in words is "fifty-six million, six hundred sixty-six thousand, seven hundred fifty-four".