25323539 has 2 divisors, whose sum is σ = 25323540. Its totient is φ = 25323538.

The previous prime is 25323533. The next prime is 25323563. The reversal of 25323539 is 93532352.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25323539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25323533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12661769 + 12661770.

It is an arithmetic number, because the mean of its divisors is an integer number (12661770).

Almost surely, 2^25323539 is an apocalyptic number.

25323539 is a deficient number, since it is larger than the sum of its proper divisors (1).

25323539 is an equidigital number, since it uses as much as digits as its factorization.

25323539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 32.

The square root of 25323539 is about 5032.2498944309. The cubic root of 25323539 is about 293.6577495747.

The spelling of 25323539 in words is "twenty-five million, three hundred twenty-three thousand, five hundred thirty-nine".