55359920928 has 48 divisors (see below), whose sum is σ = 156498241536. Its totient is φ = 17033821440.

The previous prime is 55359920911. The next prime is 55359920933. The reversal of 55359920928 is 82902995355.

55359920928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

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, 22178208 + ... + 22180703.

It is an arithmetic number, because the mean of its divisors is an integer number (3260380032).

Almost surely, 2^55359920928 is an apocalyptic number.

It is an amenable number.

55359920928 is an abundant number, since it is smaller than the sum of its proper divisors (101138320608).

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

55359920928 is a wasteful number, since it uses less digits than its factorization.

55359920928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44358937 (or 44358929 counting only the distinct ones).

The product of its (nonzero) digits is 8748000, while the sum is 57.

The spelling of 55359920928 in words is "fifty-five billion, three hundred fifty-nine million, nine hundred twenty thousand, nine hundred twenty-eight".