25932247189 has 2 divisors, whose sum is σ = 25932247190. Its totient is φ = 25932247188.

The previous prime is 25932247141. The next prime is 25932247241. The reversal of 25932247189 is 98174223952.

It is a happy number.

It is an a-pointer prime, because the next prime (25932247241) can be obtained adding 25932247189 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23526344689 + 2405902500 = 153383^2 + 49050^2 .

It is a cyclic number.

It is not a de Polignac number, because 25932247189 - 2⁹ = 25932246677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25932247129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12966123594 + 12966123595.

It is an arithmetic number, because the mean of its divisors is an integer number (12966123595).

Almost surely, 2^25932247189 is an apocalyptic number.

It is an amenable number.

25932247189 is a deficient number, since it is larger than the sum of its proper divisors (1).

25932247189 is an equidigital number, since it uses as much as digits as its factorization.

25932247189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The spelling of 25932247189 in words is "twenty-five billion, nine hundred thirty-two million, two hundred forty-seven thousand, one hundred eighty-nine".