55800888 has 128 divisors (see below), whose sum is σ = 166924800. Its totient is φ = 15321600.

The previous prime is 55800887. The next prime is 55800911. The reversal of 55800888 is 88800855.

55800888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55800888² = 6227478203177088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55800881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243558 + ... + 243786.

It is an arithmetic number, because the mean of its divisors is an integer number (1304100).

Almost surely, 2^55800888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55800888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83462400).

55800888 is an abundant number, since it is smaller than the sum of its proper divisors (111123912).

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

55800888 is a wasteful number, since it uses less digits than its factorization.

55800888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 42.

The square root of 55800888 is about 7469.9991967871. Note that the first 3 decimals coincide. The cubic root of 55800888 is about 382.1322605166.

It can be divided in two parts, 558008 and 88, that added together give a triangular number (558096 = T₁₀₅₆).

The spelling of 55800888 in words is "fifty-five million, eight hundred thousand, eight hundred eighty-eight".