25906379 has 2 divisors, whose sum is σ = 25906380. Its totient is φ = 25906378.

The previous prime is 25906343. The next prime is 25906381. The reversal of 25906379 is 97360952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25906379 - 2⁸ = 25906123 is a prime.

It is a super-2 number, since 2×25906379² = 1342280945783282, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 25906381, 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 (25906319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12953189 + 12953190.

It is an arithmetic number, because the mean of its divisors is an integer number (12953190).

Almost surely, 2^25906379 is an apocalyptic number.

25906379 is a deficient number, since it is larger than the sum of its proper divisors (1).

25906379 is an equidigital number, since it uses as much as digits as its factorization.

25906379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 25906379 is about 5089.8309402180. The cubic root of 25906379 is about 295.8935999063.

The spelling of 25906379 in words is "twenty-five million, nine hundred six thousand, three hundred seventy-nine".