25945901 has 2 divisors, whose sum is σ = 25945902. Its totient is φ = 25945900.

The previous prime is 25945897. The next prime is 25945919. The reversal of 25945901 is 10954952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20016676 + 5929225 = 4474^2 + 2435^2 .

It is a cyclic number.

It is not a de Polignac number, because 25945901 - 2² = 25945897 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25945201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12972950 + 12972951.

It is an arithmetic number, because the mean of its divisors is an integer number (12972951).

Almost surely, 2^25945901 is an apocalyptic number.

It is an amenable number.

25945901 is a deficient number, since it is larger than the sum of its proper divisors (1).

25945901 is an equidigital number, since it uses as much as digits as its factorization.

25945901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 25945901 is about 5093.7119078330. The cubic root of 25945901 is about 296.0439922744.

The spelling of 25945901 in words is "twenty-five million, nine hundred forty-five thousand, nine hundred one".