25329 has 4 divisors (see below), whose sum is σ = 33776. Its totient is φ = 16884.

The previous prime is 25321. The next prime is 25339. The reversal of 25329 is 92352.

25329 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25329 - 2³ = 25321 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25329.

It is not an unprimeable number, because it can be changed into a prime (25321) 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, 4219 + ... + 4224.

It is an arithmetic number, because the mean of its divisors is an integer number (8444).

2²⁵³²⁹ is an apocalyptic number.

It is an amenable number.

25329 is a deficient number, since it is larger than the sum of its proper divisors (8447).

25329 is an equidigital number, since it uses as much as digits as its factorization.

25329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8446.

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

The square root of 25329 is about 159.1508718167. The cubic root of 25329 is about 29.3678857073.

It can be divided in two parts, 253 and 29, that multiplied together give a palindrome (7337).

The spelling of 25329 in words is "twenty-five thousand, three hundred twenty-nine".