5559951798 has 48 divisors (see below), whose sum is σ = 12700696320. Its totient is φ = 1752990768.

The previous prime is 5559951781. The next prime is 5559951857. The reversal of 5559951798 is 8971599555.

5559951798 is a `hidden beast` number, since 5 + 559 + 9 + 5 + 1 + 79 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208711 + ... + 233837.

It is an arithmetic number, because the mean of its divisors is an integer number (264597840).

Almost surely, 2^5559951798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5559951798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6350348160).

5559951798 is an abundant number, since it is smaller than the sum of its proper divisors (7140744522).

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

5559951798 is a wasteful number, since it uses less digits than its factorization.

5559951798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25801 (or 25798 counting only the distinct ones).

The product of its digits is 25515000, while the sum is 63.

The square root of 5559951798 is about 74565.0843089445. The cubic root of 5559951798 is about 1771.5646626014.

The spelling of 5559951798 in words is "five billion, five hundred fifty-nine million, nine hundred fifty-one thousand, seven hundred ninety-eight".