56557366 has 16 divisors (see below), whose sum is σ = 88334640. Its totient is φ = 27125280.

The previous prime is 56557363. The next prime is 56557379. The reversal of 56557366 is 66375565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56557363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6001 + ... + 12211.

It is an arithmetic number, because the mean of its divisors is an integer number (5520915).

Almost surely, 2^56557366 is an apocalyptic number.

56557366 is a deficient number, since it is larger than the sum of its proper divisors (31777274).

56557366 is a wasteful number, since it uses less digits than its factorization.

56557366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399.

The product of its digits is 567000, while the sum is 43.

The square root of 56557366 is about 7520.4631506311. The cubic root of 56557366 is about 383.8513376725.

The spelling of 56557366 in words is "fifty-six million, five hundred fifty-seven thousand, three hundred sixty-six".