25669073 has 2 divisors, whose sum is σ = 25669074. Its totient is φ = 25669072.

The previous prime is 25669001. The next prime is 25669093. The reversal of 25669073 is 37096652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22819729 + 2849344 = 4777^2 + 1688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25669073 is a prime.

It is not a weakly prime, because it can be changed into another prime (25669093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12834536 + 12834537.

It is an arithmetic number, because the mean of its divisors is an integer number (12834537).

Almost surely, 2^25669073 is an apocalyptic number.

It is an amenable number.

25669073 is a deficient number, since it is larger than the sum of its proper divisors (1).

25669073 is an equidigital number, since it uses as much as digits as its factorization.

25669073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 25669073 is about 5066.4655332885. The cubic root of 25669073 is about 294.9873517511.

The spelling of 25669073 in words is "twenty-five million, six hundred sixty-nine thousand, seventy-three".