55508288 has 56 divisors (see below), whose sum is σ = 123468384. Its totient is φ = 24537600.

The previous prime is 55508273. The next prime is 55508293. The reversal of 55508288 is 88280555.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24983 + ... + 27113.

Almost surely, 2^55508288 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 55508288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61734192).

55508288 is an abundant number, since it is smaller than the sum of its proper divisors (67960096).

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

55508288 is a wasteful number, since it uses less digits than its factorization.

55508288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 41.

The square root of 55508288 is about 7450.3884462490. The cubic root of 55508288 is about 381.4631677913.

The spelling of 55508288 in words is "fifty-five million, five hundred eight thousand, two hundred eighty-eight".