25979207 has 2 divisors, whose sum is σ = 25979208. Its totient is φ = 25979206.

The previous prime is 25979171. The next prime is 25979231. The reversal of 25979207 is 70297952.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25979207 - 2¹⁴ = 25962823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25979507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12989603 + 12989604.

It is an arithmetic number, because the mean of its divisors is an integer number (12989604).

Almost surely, 2^25979207 is an apocalyptic number.

25979207 is a deficient number, since it is larger than the sum of its proper divisors (1).

25979207 is an equidigital number, since it uses as much as digits as its factorization.

25979207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 25979207 is about 5096.9801843837. The cubic root of 25979207 is about 296.1706124703.

The spelling of 25979207 in words is "twenty-five million, nine hundred seventy-nine thousand, two hundred seven".