55556608 has 40 divisors (see below), whose sum is σ = 116867520. Its totient is φ = 26311680.

The previous prime is 55556597. The next prime is 55556617. The reversal of 55556608 is 80665555.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6873 + ... + 12583.

It is an arithmetic number, because the mean of its divisors is an integer number (2921688).

Almost surely, 2^55556608 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 55556608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58433760).

55556608 is an abundant number, since it is smaller than the sum of its proper divisors (61310912).

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

55556608 is an equidigital number, since it uses as much as digits as its factorization.

55556608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748 (or 5732 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 40.

The square root of 55556608 is about 7453.6305247845. The cubic root of 55556608 is about 381.5738236655.

The spelling of 55556608 in words is "fifty-five million, five hundred fifty-six thousand, six hundred eight".