25695893 has 2 divisors, whose sum is σ = 25695894. Its totient is φ = 25695892.

The previous prime is 25695851. The next prime is 25695919. The reversal of 25695893 is 39859652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18335524 + 7360369 = 4282^2 + 2713^2 .

It is a cyclic number.

It is not a de Polignac number, because 25695893 - 2⁶ = 25695829 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25695833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12847946 + 12847947.

It is an arithmetic number, because the mean of its divisors is an integer number (12847947).

Almost surely, 2^25695893 is an apocalyptic number.

It is an amenable number.

25695893 is a deficient number, since it is larger than the sum of its proper divisors (1).

25695893 is an equidigital number, since it uses as much as digits as its factorization.

25695893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 47.

The square root of 25695893 is about 5069.1116578746. Note that the first 3 decimals coincide. The cubic root of 25695893 is about 295.0900539009.

The spelling of 25695893 in words is "twenty-five million, six hundred ninety-five thousand, eight hundred ninety-three".