25765799 has 2 divisors, whose sum is σ = 25765800. Its totient is φ = 25765798.

The previous prime is 25765793. The next prime is 25765811. The reversal of 25765799 is 99756752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25765799 - 2⁴ = 25765783 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25765793) 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, 12882899 + 12882900.

It is an arithmetic number, because the mean of its divisors is an integer number (12882900).

Almost surely, 2^25765799 is an apocalyptic number.

25765799 is a deficient number, since it is larger than the sum of its proper divisors (1).

25765799 is an equidigital number, since it uses as much as digits as its factorization.

25765799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1190700, while the sum is 50.

The square root of 25765799 is about 5076.0022655629. The cubic root of 25765799 is about 295.3574103325.

The spelling of 25765799 in words is "twenty-five million, seven hundred sixty-five thousand, seven hundred ninety-nine".