259015 has 4 divisors (see below), whose sum is σ = 310824. Its totient is φ = 207208.

The previous prime is 259009. The next prime is 259019. The reversal of 259015 is 510952.

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 259015 - 2⁵ = 258983 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259019) 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 3 ways as a sum of consecutive naturals, for example, 25897 + ... + 25906.

It is an arithmetic number, because the mean of its divisors is an integer number (77706).

2²⁵⁹⁰¹⁵ is an apocalyptic number.

259015 is a deficient number, since it is larger than the sum of its proper divisors (51809).

259015 is an equidigital number, since it uses as much as digits as its factorization.

259015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51808.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 259015 is about 508.9351628646. The cubic root of 259015 is about 63.7443414175.

Adding to 259015 its reverse (510952), we get a palindrome (769967).

The spelling of 259015 in words is "two hundred fifty-nine thousand, fifteen".