25829317 has 2 divisors, whose sum is σ = 25829318. Its totient is φ = 25829316.

The previous prime is 25829263. The next prime is 25829327. The reversal of 25829317 is 71392852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23367556 + 2461761 = 4834^2 + 1569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25829317 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 (25829327) 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, 12914658 + 12914659.

It is an arithmetic number, because the mean of its divisors is an integer number (12914659).

Almost surely, 2^25829317 is an apocalyptic number.

It is an amenable number.

25829317 is a deficient number, since it is larger than the sum of its proper divisors (1).

25829317 is an equidigital number, since it uses as much as digits as its factorization.

25829317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 25829317 is about 5082.2551096929. The cubic root of 25829317 is about 295.5999167767.

The spelling of 25829317 in words is "twenty-five million, eight hundred twenty-nine thousand, three hundred seventeen".