55013568 has 56 divisors (see below), whose sum is σ = 146151600. Its totient is φ = 18263040.

The previous prime is 55013557. The next prime is 55013573. The reversal of 55013568 is 86531055.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66598 + ... + 67418.

It is an arithmetic number, because the mean of its divisors is an integer number (2609850).

Almost surely, 2^55013568 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 55013568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73075800).

55013568 is an abundant number, since it is smaller than the sum of its proper divisors (91138032).

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

55013568 is a wasteful number, since it uses less digits than its factorization.

55013568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 55013568 is about 7417.1131850606. The cubic root of 55013568 is about 380.3265152983.

The spelling of 55013568 in words is "fifty-five million, thirteen thousand, five hundred sixty-eight".