259505 has 16 divisors (see below), whose sum is σ = 342144. Its totient is φ = 188160.

The previous prime is 259499. The next prime is 259507. The reversal of 259505 is 505952.

It is not a de Polignac number, because 259505 - 2¹⁴ = 243121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (259507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3620 + ... + 3690.

It is an arithmetic number, because the mean of its divisors is an integer number (21384).

2²⁵⁹⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

259505 is a deficient number, since it is larger than the sum of its proper divisors (82639).

259505 is a wasteful number, since it uses less digits than its factorization.

259505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 259505 is about 509.4163326789. The cubic root of 259505 is about 63.7845129025.

The spelling of 259505 in words is "two hundred fifty-nine thousand, five hundred five".