55990088 has 48 divisors (see below), whose sum is σ = 131893440. Its totient is φ = 21811680.

The previous prime is 55990087. The next prime is 55990117. The reversal of 55990088 is 88009955.

55990088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (55990087) 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 11 ways as a sum of consecutive naturals, for example, 2645 + ... + 10907.

It is an arithmetic number, because the mean of its divisors is an integer number (2747780).

Almost surely, 2^55990088 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 55990088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65946720).

55990088 is an abundant number, since it is smaller than the sum of its proper divisors (75903352).

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

55990088 is a wasteful number, since it uses less digits than its factorization.

55990088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8298 (or 8283 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 44.

The square root of 55990088 is about 7482.6524708822. The cubic root of 55990088 is about 382.5636626346.

The spelling of 55990088 in words is "fifty-five million, nine hundred ninety thousand, eighty-eight".