259555 has 16 divisors (see below), whose sum is σ = 339264. Its totient is φ = 190080.

The previous prime is 259547. The next prime is 259577. The reversal of 259555 is 555952.

It is not a de Polignac number, because 259555 - 2³ = 259547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4225 + ... + 4285.

It is an arithmetic number, because the mean of its divisors is an integer number (21204).

2²⁵⁹⁵⁵⁵ is an apocalyptic number.

259555 is a deficient number, since it is larger than the sum of its proper divisors (79709).

259555 is a wasteful number, since it uses less digits than its factorization.

259555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126.

The product of its digits is 11250, while the sum is 31.

The square root of 259555 is about 509.4654060876. The cubic root of 259555 is about 63.7886091894.

The spelling of 259555 in words is "two hundred fifty-nine thousand, five hundred fifty-five".