55032689280 has 256 divisors, whose sum is σ = 178543411200. Its totient is φ = 14415777792.

The previous prime is 55032689279. The next prime is 55032689291. The reversal of 55032689280 is 8298623055.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33823827 + ... + 33825453.

It is an arithmetic number, because the mean of its divisors is an integer number (697435200).

Almost surely, 2^55032689280 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 55032689280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89271705600).

55032689280 is an abundant number, since it is smaller than the sum of its proper divisors (123510721920).

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

55032689280 is a wasteful number, since it uses less digits than its factorization.

55032689280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 55032689280 in words is "fifty-five billion, thirty-two million, six hundred eighty-nine thousand, two hundred eighty".