25964717 has 2 divisors, whose sum is σ = 25964718. Its totient is φ = 25964716.

The previous prime is 25964699. The next prime is 25964737. The reversal of 25964717 is 71746952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13756681 + 12208036 = 3709^2 + 3494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25964717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25964737) 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, 12982358 + 12982359.

It is an arithmetic number, because the mean of its divisors is an integer number (12982359).

Almost surely, 2^25964717 is an apocalyptic number.

It is an amenable number.

25964717 is a deficient number, since it is larger than the sum of its proper divisors (1).

25964717 is an equidigital number, since it uses as much as digits as its factorization.

25964717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The square root of 25964717 is about 5095.5585562331. The cubic root of 25964717 is about 296.1155388070.

The spelling of 25964717 in words is "twenty-five million, nine hundred sixty-four thousand, seven hundred seventeen".