55455568 has 20 divisors (see below), whose sum is σ = 122794720. Its totient is φ = 23766624.

The previous prime is 55455557. The next prime is 55455583. The reversal of 55455568 is 86555455.

55455568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 247458 + ... + 247681.

It is an arithmetic number, because the mean of its divisors is an integer number (6139736).

Almost surely, 2^55455568 is an apocalyptic number.

It is an amenable number.

55455568 is an abundant number, since it is smaller than the sum of its proper divisors (67339152).

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

55455568 is a wasteful number, since it uses less digits than its factorization.

55455568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495154 (or 495148 counting only the distinct ones).

The product of its digits is 600000, while the sum is 43.

The square root of 55455568 is about 7446.8495352061. The cubic root of 55455568 is about 381.3423623576.

The spelling of 55455568 in words is "fifty-five million, four hundred fifty-five thousand, five hundred sixty-eight".