55598505100 has 144 divisors (see below), whose sum is σ = 134404522560. Its totient is φ = 19867852800.

The previous prime is 55598505073. The next prime is 55598505119. The reversal of 55598505100 is 150589555.

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, 2568121 + ... + 2589679.

It is an arithmetic number, because the mean of its divisors is an integer number (933364740).

Almost surely, 2^55598505100 is an apocalyptic number.

55598505100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55598505100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67202261280).

55598505100 is an abundant number, since it is smaller than the sum of its proper divisors (78806017460).

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

55598505100 is a wasteful number, since it uses less digits than its factorization.

55598505100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21668 (or 21661 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 43.

The spelling of 55598505100 in words is "fifty-five billion, five hundred ninety-eight million, five hundred five thousand, one hundred".