25904523089 has 2 divisors, whose sum is σ = 25904523090. Its totient is φ = 25904523088.

The previous prime is 25904523037. The next prime is 25904523097. The reversal of 25904523089 is 98032540952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25593600400 + 310922689 = 159980^2 + 17633^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25904523089 is a prime.

It is not a weakly prime, because it can be changed into another prime (25904523019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12952261544 + 12952261545.

It is an arithmetic number, because the mean of its divisors is an integer number (12952261545).

Almost surely, 2^25904523089 is an apocalyptic number.

It is an amenable number.

25904523089 is a deficient number, since it is larger than the sum of its proper divisors (1).

25904523089 is an equidigital number, since it uses as much as digits as its factorization.

25904523089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 25904523089 in words is "twenty-five billion, nine hundred four million, five hundred twenty-three thousand, eighty-nine".