56557496 has 8 divisors (see below), whose sum is σ = 106045320. Its totient is φ = 28278744.

The previous prime is 56557493. The next prime is 56557507. The reversal of 56557496 is 69475565.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 56557496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56557493) 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 as a sum of consecutive naturals, namely, 3534836 + ... + 3534851.

It is an arithmetic number, because the mean of its divisors is an integer number (13255665).

Almost surely, 2^56557496 is an apocalyptic number.

It is an amenable number.

56557496 is a deficient number, since it is larger than the sum of its proper divisors (49487824).

56557496 is a wasteful number, since it uses less digits than its factorization.

56557496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7069693 (or 7069689 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 47.

The square root of 56557496 is about 7520.4717937108. The cubic root of 56557496 is about 383.8516317730.

The spelling of 56557496 in words is "fifty-six million, five hundred fifty-seven thousand, four hundred ninety-six".