55881804 has 24 divisors (see below), whose sum is σ = 142244928. Its totient is φ = 16933840.

The previous prime is 55881767. The next prime is 55881817. The reversal of 55881804 is 40818855.

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, 211542 + ... + 211805.

It is an arithmetic number, because the mean of its divisors is an integer number (5926872).

Almost surely, 2^55881804 is an apocalyptic number.

It is an amenable number.

55881804 is an abundant number, since it is smaller than the sum of its proper divisors (86363124).

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

55881804 is a wasteful number, since it uses less digits than its factorization.

55881804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423365 (or 423363 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 55881804 is about 7475.4132996109. The cubic root of 55881804 is about 382.3168793241.

The spelling of 55881804 in words is "fifty-five million, eight hundred eighty-one thousand, eight hundred four".