5598 has 12 divisors (see below), whose sum is σ = 12168.
Its totient is φ = 1860.
The previous prime is 5591. The next prime is 5623. The reversal of 5598 is 8955.
Adding to 5598 its sum of digits (27), we get a square (5625 = 752).
It can be divided in two parts, 55 and 98, that added together give a triangular number (153 = T17).
It is a Curzon number.
It is a plaindrome in base 16.
It is a nialpdrome in base 9.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (5591) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138 + ... + 173.
It is an arithmetic number, because the mean of its divisors is an integer number (1014).
25598 is an apocalyptic number.
5598 is an abundant number, since it is smaller than the sum of its proper divisors (6570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
5598 is a wasteful number, since it uses less digits than its factorization.
5598 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 319 (or 316 counting only the distinct ones).
The product of its digits is 1800, while the sum is 27.
The square root of 5598 is about 74.8197834800.
The cubic root of 5598 is about 17.7559657260.
The spelling of 5598 in words is "five thousand, five hundred ninety-eight".