25522589 has 2 divisors, whose sum is σ = 25522590. Its totient is φ = 25522588.

The previous prime is 25522577. The next prime is 25522631. The reversal of 25522589 is 98522552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24334489 + 1188100 = 4933^2 + 1090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25522589 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25525589) 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, 12761294 + 12761295.

It is an arithmetic number, because the mean of its divisors is an integer number (12761295).

Almost surely, 2^25522589 is an apocalyptic number.

It is an amenable number.

25522589 is a deficient number, since it is larger than the sum of its proper divisors (1).

25522589 is an equidigital number, since it uses as much as digits as its factorization.

25522589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 38.

The square root of 25522589 is about 5051.9886183561. The cubic root of 25522589 is about 294.4251527041.

The spelling of 25522589 in words is "twenty-five million, five hundred twenty-two thousand, five hundred eighty-nine".