259596 has 18 divisors (see below), whose sum is σ = 656292. Its totient is φ = 86520.

The previous prime is 259583. The next prime is 259603. The reversal of 259596 is 695952.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 7211 = 259596 / (2 + 5 + 9 + 5 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 259596.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3570 + ... + 3641.

2²⁵⁹⁵⁹⁶ is an apocalyptic number.

It is an amenable number.

259596 is an abundant number, since it is smaller than the sum of its proper divisors (396696).

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

259596 is a wasteful number, since it uses less digits than its factorization.

259596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221 (or 7216 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 259596 is about 509.5056427558. The cubic root of 259596 is about 63.7919677522.

Subtracting from 259596 its sum of digits (36), we obtain a triangular number (259560 = T₇₂₀).

The spelling of 259596 in words is "two hundred fifty-nine thousand, five hundred ninety-six".