55306409408 has 56 divisors (see below), whose sum is σ = 114574185888. Its totient is φ = 26438455296.

The previous prime is 55306409387. The next prime is 55306409419. The reversal of 55306409408 is 80490460355.

It is a congruent number.

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, 3632660 + ... + 3647852.

Almost surely, 2^55306409408 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 55306409408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57287092944).

55306409408 is an abundant number, since it is smaller than the sum of its proper divisors (59267776480).

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

55306409408 is a wasteful number, since it uses less digits than its factorization.

55306409408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17701 (or 17691 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 55306409408 in words is "fifty-five billion, three hundred six million, four hundred nine thousand, four hundred eight".