25944089 has 2 divisors, whose sum is σ = 25944090. Its totient is φ = 25944088.

The previous prime is 25944059. The next prime is 25944109. The reversal of 25944089 is 98044952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25928464 + 15625 = 5092^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 25944089 - 2⁸ = 25943833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25944019) 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, 12972044 + 12972045.

It is an arithmetic number, because the mean of its divisors is an integer number (12972045).

Almost surely, 2^25944089 is an apocalyptic number.

It is an amenable number.

25944089 is a deficient number, since it is larger than the sum of its proper divisors (1).

25944089 is an equidigital number, since it uses as much as digits as its factorization.

25944089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 25944089 is about 5093.5340383667. The cubic root of 25944089 is about 296.0371004446.

The spelling of 25944089 in words is "twenty-five million, nine hundred forty-four thousand, eighty-nine".