55723255328 has 144 divisors (see below), whose sum is σ = 127060168536. Its totient is φ = 23901696000.

The previous prime is 55723255303. The next prime is 55723255369. The reversal of 55723255328 is 82355232755.

55723255328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42325655824 + 13397599504 = 205732^2 + 115748^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7955828 + ... + 7962828.

Almost surely, 2^55723255328 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 55723255328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63530084268).

55723255328 is an abundant number, since it is smaller than the sum of its proper divisors (71336913208).

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

55723255328 is a wasteful number, since it uses less digits than its factorization.

55723255328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7115 (or 7088 counting only the distinct ones).

The product of its digits is 2520000, while the sum is 47.

The spelling of 55723255328 in words is "fifty-five billion, seven hundred twenty-three million, two hundred fifty-five thousand, three hundred twenty-eight".