259811 has 12 divisors (see below), whose sum is σ = 294720. Its totient is φ = 228480.

The previous prime is 259801. The next prime is 259813. The reversal of 259811 is 118952.

It is a happy number.

It is not a de Polignac number, because 259811 - 2¹⁰ = 258787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259813) 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 11 ways as a sum of consecutive naturals, for example, 8366 + ... + 8396.

It is an arithmetic number, because the mean of its divisors is an integer number (24560).

2²⁵⁹⁸¹¹ is an apocalyptic number.

259811 is a deficient number, since it is larger than the sum of its proper divisors (34909).

259811 is a wasteful number, since it uses less digits than its factorization.

259811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 77 counting only the distinct ones).

The product of its digits is 720, while the sum is 26.

The square root of 259811 is about 509.7165879192. The cubic root of 259811 is about 63.8095739408.

The spelling of 259811 in words is "two hundred fifty-nine thousand, eight hundred eleven".