25459 has 4 divisors (see below), whose sum is σ = 29104. Its totient is φ = 21816.

The previous prime is 25457. The next prime is 25463. The reversal of 25459 is 95452.

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 25459 - 2¹ = 25457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25453) 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, 1812 + ... + 1825.

It is an arithmetic number, because the mean of its divisors is an integer number (7276).

2²⁵⁴⁵⁹ is an apocalyptic number.

25459 is a deficient number, since it is larger than the sum of its proper divisors (3645).

25459 is an equidigital number, since it uses as much as digits as its factorization.

25459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644.

The product of its digits is 1800, while the sum is 25.

The square root of 25459 is about 159.5587666034. The cubic root of 25459 is about 29.4180431303.

It can be divided in two parts, 254 and 59, that added together give a palindrome (313).

The spelling of 25459 in words is "twenty-five thousand, four hundred fifty-nine".