25683689 has 2 divisors, whose sum is σ = 25683690. Its totient is φ = 25683688.

The previous prime is 25683677. The next prime is 25683701. The reversal of 25683689 is 98638652.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (25683677) and next prime (25683701).

It can be written as a sum of positive squares in only one way, i.e., 25603600 + 80089 = 5060^2 + 283^2 .

It is a cyclic number.

It is not a de Polignac number, because 25683689 - 2⁴ = 25683673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25683629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12841844 + 12841845.

It is an arithmetic number, because the mean of its divisors is an integer number (12841845).

Almost surely, 2^25683689 is an apocalyptic number.

It is an amenable number.

25683689 is a deficient number, since it is larger than the sum of its proper divisors (1).

25683689 is an equidigital number, since it uses as much as digits as its factorization.

25683689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 25683689 is about 5067.9077536988. The cubic root of 25683689 is about 295.0433298414.

The spelling of 25683689 in words is "twenty-five million, six hundred eighty-three thousand, six hundred eighty-nine".