55305563968 has 56 divisors (see below), whose sum is σ = 111149892000. Its totient is φ = 27299781120.

The previous prime is 55305563953. The next prime is 55305564047. The reversal of 55305563968 is 86936550355.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9617158 + ... + 9622906.

It is an arithmetic number, because the mean of its divisors is an integer number (1984819500).

Almost surely, 2^55305563968 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 55305563968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55574946000).

55305563968 is an abundant number, since it is smaller than the sum of its proper divisors (55844328032).

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

55305563968 is a wasteful number, since it uses less digits than its factorization.

55305563968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7655 (or 7645 counting only the distinct ones).

The product of its (nonzero) digits is 14580000, while the sum is 55.

The spelling of 55305563968 in words is "fifty-five billion, three hundred five million, five hundred sixty-three thousand, nine hundred sixty-eight".