25328507 has 2 divisors, whose sum is σ = 25328508. Its totient is φ = 25328506.

The previous prime is 25328491. The next prime is 25328509. The reversal of 25328507 is 70582352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25328507 - 2⁴ = 25328491 is a prime.

Together with 25328509, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25328509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12664253 + 12664254.

It is an arithmetic number, because the mean of its divisors is an integer number (12664254).

Almost surely, 2^25328507 is an apocalyptic number.

25328507 is a deficient number, since it is larger than the sum of its proper divisors (1).

25328507 is an equidigital number, since it uses as much as digits as its factorization.

25328507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 25328507 is about 5032.7434864098. The cubic root of 25328507 is about 293.6769516868.

The spelling of 25328507 in words is "twenty-five million, three hundred twenty-eight thousand, five hundred seven".