56775528 has 24 divisors (see below), whose sum is σ = 153767250. Its totient is φ = 18925152.

The previous prime is 56775517. The next prime is 56775541. The reversal of 56775528 is 82557765.

56775528 is a `hidden beast` number, since 56 + 7 + 75 + 528 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44116164 + 12659364 = 6642^2 + 3558^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 394203 + ... + 394346.

Almost surely, 2^56775528 is an apocalyptic number.

It is an amenable number.

56775528 is an abundant number, since it is smaller than the sum of its proper divisors (96991722).

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

56775528 is a wasteful number, since it uses less digits than its factorization.

56775528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788561 (or 788554 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 56775528 is about 7534.9537490286. The cubic root of 56775528 is about 384.3442550860.

The spelling of 56775528 in words is "fifty-six million, seven hundred seventy-five thousand, five hundred twenty-eight".