25651691159 has 2 divisors, whose sum is σ = 25651691160. Its totient is φ = 25651691158.

The previous prime is 25651691047. The next prime is 25651691201. The reversal of 25651691159 is 95119615652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25651691159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25651690159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12825845579 + 12825845580.

It is an arithmetic number, because the mean of its divisors is an integer number (12825845580).

Almost surely, 2^25651691159 is an apocalyptic number.

25651691159 is a deficient number, since it is larger than the sum of its proper divisors (1).

25651691159 is an equidigital number, since it uses as much as digits as its factorization.

25651691159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 729000, while the sum is 50.

The spelling of 25651691159 in words is "twenty-five billion, six hundred fifty-one million, six hundred ninety-one thousand, one hundred fifty-nine".