55598198528 has 72 divisors (see below), whose sum is σ = 112721490000. Its totient is φ = 27366047744.

The previous prime is 55598198501. The next prime is 55598198533. The reversal of 55598198528 is 82589189555.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4303823 + ... + 4316721.

It is an arithmetic number, because the mean of its divisors is an integer number (1565576250).

Almost surely, 2^55598198528 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 55598198528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56360745000).

55598198528 is an abundant number, since it is smaller than the sum of its proper divisors (57123291472).

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

55598198528 is a wasteful number, since it uses less digits than its factorization.

55598198528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13177 (or 13163 counting only the distinct ones).

The product of its digits is 51840000, while the sum is 65.

The spelling of 55598198528 in words is "fifty-five billion, five hundred ninety-eight million, one hundred ninety-eight thousand, five hundred twenty-eight".