25239323 has 4 divisors (see below), whose sum is σ = 25826328. Its totient is φ = 24652320.

The previous prime is 25239311. The next prime is 25239337. The reversal of 25239323 is 32393252.

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 25239323 - 2⁴ = 25239307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25239343) 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, 293438 + ... + 293523.

It is an arithmetic number, because the mean of its divisors is an integer number (6456582).

Almost surely, 2^25239323 is an apocalyptic number.

25239323 is a deficient number, since it is larger than the sum of its proper divisors (587005).

25239323 is an equidigital number, since it uses as much as digits as its factorization.

25239323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587004.

The product of its digits is 9720, while the sum is 29.

The square root of 25239323 is about 5023.8752970192. The cubic root of 25239323 is about 293.3318584924.

It can be divided in two parts, 2 and 5239323, that added together give a palindrome (5239325).

The spelling of 25239323 in words is "twenty-five million, two hundred thirty-nine thousand, three hundred twenty-three".