55004402880 has 672 divisors, whose sum is σ = 223692378624. Its totient is φ = 12144771072.

The previous prime is 55004402861. The next prime is 55004402891. The reversal of 55004402880 is 8820440055.

55004402880 is a `hidden beast` number, since 550 + 0 + 4 + 4 + 0 + 28 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 92755864 + ... + 92756456.

Almost surely, 2^55004402880 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 55004402880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111846189312).

55004402880 is an abundant number, since it is smaller than the sum of its proper divisors (168687975744).

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

55004402880 is a wasteful number, since it uses less digits than its factorization.

55004402880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The spelling of 55004402880 in words is "fifty-five billion, four million, four hundred two thousand, eight hundred eighty".