259023 has 4 divisors (see below), whose sum is σ = 345368. Its totient is φ = 172680.

The previous prime is 259019. The next prime is 259033. The reversal of 259023 is 320952.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 259023 - 2² = 259019 is a prime.

It is a D-number.

It is a Duffinian number.

259023 is a lucky 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 (259033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43168 + ... + 43173.

It is an arithmetic number, because the mean of its divisors is an integer number (86342).

2²⁵⁹⁰²³ is an apocalyptic number.

259023 is a deficient number, since it is larger than the sum of its proper divisors (86345).

259023 is an equidigital number, since it uses as much as digits as its factorization.

259023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86344.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 259023 is about 508.9430223512. The cubic root of 259023 is about 63.7449976852.

Adding to 259023 its reverse (320952), we get a palindrome (579975).

The spelling of 259023 in words is "two hundred fifty-nine thousand, twenty-three".