55583808 has 56 divisors (see below), whose sum is σ = 168078912. Its totient is φ = 15880704.

The previous prime is 55583791. The next prime is 55583831. The reversal of 55583808 is 80838555.

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

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 55583808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19335 + ... + 22022.

Almost surely, 2^55583808 is an apocalyptic number.

It is an amenable number.

55583808 is an abundant number, since it is smaller than the sum of its proper divisors (112495104).

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

55583808 is a wasteful number, since it uses less digits than its factorization.

55583808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41379 (or 41369 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 42.

The square root of 55583808 is about 7455.4549156976. The cubic root of 55583808 is about 381.6360851741.

The spelling of 55583808 in words is "fifty-five million, five hundred eighty-three thousand, eight hundred eight".