259799 has 4 divisors (see below), whose sum is σ = 264120. Its totient is φ = 255480.

The previous prime is 259783. The next prime is 259801. The reversal of 259799 is 997952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 259799 - 2⁴ = 259783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2069 + ... + 2190.

It is an arithmetic number, because the mean of its divisors is an integer number (66030).

2²⁵⁹⁷⁹⁹ is an apocalyptic number.

259799 is a deficient number, since it is larger than the sum of its proper divisors (4321).

259799 is an equidigital number, since it uses as much as digits as its factorization.

259799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4320.

The product of its digits is 51030, while the sum is 41.

The square root of 259799 is about 509.7048165360. The cubic root of 259799 is about 63.8085915258.

The spelling of 259799 in words is "two hundred fifty-nine thousand, seven hundred ninety-nine".