25955903 has 2 divisors, whose sum is σ = 25955904. Its totient is φ = 25955902.

The previous prime is 25955893. The next prime is 25955921. The reversal of 25955903 is 30955952.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25955903 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25955933) 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, 12977951 + 12977952.

It is an arithmetic number, because the mean of its divisors is an integer number (12977952).

Almost surely, 2^25955903 is an apocalyptic number.

25955903 is a deficient number, since it is larger than the sum of its proper divisors (1).

25955903 is an equidigital number, since it uses as much as digits as its factorization.

25955903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60750, while the sum is 38.

The square root of 25955903 is about 5094.6936119849. The cubic root of 25955903 is about 296.0820284894.

The spelling of 25955903 in words is "twenty-five million, nine hundred fifty-five thousand, nine hundred three".