55247789328 has 40 divisors (see below), whose sum is σ = 144443025888. Its totient is φ = 18194049792.

The previous prime is 55247789323. The next prime is 55247789329. The reversal of 55247789328 is 82398774255.

It is not an unprimeable number, because it can be changed into a prime (55247789323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6929725 + ... + 6937692.

Almost surely, 2^55247789328 is an apocalyptic number.

It is an amenable number.

55247789328 is an abundant number, since it is smaller than the sum of its proper divisors (89195236560).

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

55247789328 is a wasteful number, since it uses less digits than its factorization.

55247789328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13867511 (or 13867505 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 60.

The spelling of 55247789328 in words is "fifty-five billion, two hundred forty-seven million, seven hundred eighty-nine thousand, three hundred twenty-eight".