25969211 has 2 divisors, whose sum is σ = 25969212. Its totient is φ = 25969210.

The previous prime is 25969193. The next prime is 25969243. The reversal of 25969211 is 11296952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25969211 - 2⁶ = 25969147 is a prime.

It is not a weakly prime, because it can be changed into another prime (25969271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12984605 + 12984606.

It is an arithmetic number, because the mean of its divisors is an integer number (12984606).

Almost surely, 2^25969211 is an apocalyptic number.

25969211 is a deficient number, since it is larger than the sum of its proper divisors (1).

25969211 is an equidigital number, since it uses as much as digits as its factorization.

25969211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 35.

The square root of 25969211 is about 5095.9995094191. Note that the first 3 decimals coincide. The cubic root of 25969211 is about 296.1326218158.

The spelling of 25969211 in words is "twenty-five million, nine hundred sixty-nine thousand, two hundred eleven".