55973568 has 56 divisors (see below), whose sum is σ = 169257472. Its totient is φ = 15992064.

The previous prime is 55973551. The next prime is 55973579. The reversal of 55973568 is 86537955.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (48).

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 7 ways as a sum of consecutive naturals, for example, 19480 + ... + 22167.

Almost surely, 2^55973568 is an apocalyptic number.

It is an amenable number.

55973568 is an abundant number, since it is smaller than the sum of its proper divisors (113283904).

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

55973568 is a wasteful number, since it uses less digits than its factorization.

55973568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41669 (or 41659 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 48.

The square root of 55973568 is about 7481.5485028168. The cubic root of 55973568 is about 382.5260335137.

The spelling of 55973568 in words is "fifty-five million, nine hundred seventy-three thousand, five hundred sixty-eight".