259911 has 6 divisors (see below), whose sum is σ = 375440. Its totient is φ = 173268.

The previous prime is 259907. The next prime is 259933. The reversal of 259911 is 119952.

It is a happy number.

It is not a de Polignac number, because 259911 - 2² = 259907 is a prime.

It is a Duffinian number.

259911 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14431 + ... + 14448.

2²⁵⁹⁹¹¹ is an apocalyptic number.

259911 is a deficient number, since it is larger than the sum of its proper divisors (115529).

259911 is a wasteful number, since it uses less digits than its factorization.

259911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28885 (or 28882 counting only the distinct ones).

The product of its digits is 810, while the sum is 27.

The square root of 259911 is about 509.8146722094. The cubic root of 259911 is about 63.8177595564.

The spelling of 259911 in words is "two hundred fifty-nine thousand, nine hundred eleven".