56775560 has 16 divisors (see below), whose sum is σ = 127745100. Its totient is φ = 22710208.

The previous prime is 56775559. The next prime is 56775581. The reversal of 56775560 is 6557765.

It can be written as a sum of positive squares in 2 ways, for example, as 55681444 + 1094116 = 7462^2 + 1046^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 709655 + ... + 709734.

Almost surely, 2^56775560 is an apocalyptic number.

It is an amenable number.

56775560 is an abundant number, since it is smaller than the sum of its proper divisors (70969540).

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

56775560 is a wasteful number, since it uses less digits than its factorization.

56775560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419400 (or 1419396 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 41.

The square root of 56775560 is about 7534.9558724653. The cubic root of 56775560 is about 384.3443272944.

The spelling of 56775560 in words is "fifty-six million, seven hundred seventy-five thousand, five hundred sixty".