55505105994 has 96 divisors (see below), whose sum is σ = 127636717824. Its totient is φ = 15987818880.

The previous prime is 55505105977. The next prime is 55505106023. The reversal of 55505105994 is 49950150555.

55505105994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1925004 + ... + 1953624.

It is an arithmetic number, because the mean of its divisors is an integer number (1329549144).

Almost surely, 2^55505105994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55505105994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63818358912).

55505105994 is an abundant number, since it is smaller than the sum of its proper divisors (72131611830).

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

55505105994 is a wasteful number, since it uses less digits than its factorization.

55505105994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28732 (or 28709 counting only the distinct ones).

The product of its (nonzero) digits is 1012500, while the sum is 48.

The spelling of 55505105994 in words is "fifty-five billion, five hundred five million, one hundred five thousand, nine hundred ninety-four".