25240698589 has 2 divisors, whose sum is σ = 25240698590. Its totient is φ = 25240698588.

The previous prime is 25240698569. The next prime is 25240698601. The reversal of 25240698589 is 98589604252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23692905625 + 1547792964 = 153925^2 + 39342^2 .

It is a cyclic number.

It is not a de Polignac number, because 25240698589 - 2⁵ = 25240698557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25240698559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12620349294 + 12620349295.

It is an arithmetic number, because the mean of its divisors is an integer number (12620349295).

Almost surely, 2^25240698589 is an apocalyptic number.

It is an amenable number.

25240698589 is a deficient number, since it is larger than the sum of its proper divisors (1).

25240698589 is an equidigital number, since it uses as much as digits as its factorization.

25240698589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12441600, while the sum is 58.

The spelling of 25240698589 in words is "twenty-five billion, two hundred forty million, six hundred ninety-eight thousand, five hundred eighty-nine".