56788866 has 24 divisors (see below), whose sum is σ = 124264764. Its totient is φ = 18741600.

The previous prime is 56788861. The next prime is 56788883. The reversal of 56788866 is 66888765.

It can be written as a sum of positive squares in 2 ways, for example, as 43283241 + 13505625 = 6579^2 + 3675^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56788861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13801 + ... + 17436.

Almost surely, 2^56788866 is an apocalyptic number.

56788866 is an abundant number, since it is smaller than the sum of its proper divisors (67475898).

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

56788866 is a wasteful number, since it uses less digits than its factorization.

56788866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31346 (or 31343 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 56788866 is about 7535.8387721607. The cubic root of 56788866 is about 384.3743501080.

The spelling of 56788866 in words is "fifty-six million, seven hundred eighty-eight thousand, eight hundred sixty-six".