25988262931 has 2 divisors, whose sum is σ = 25988262932. Its totient is φ = 25988262930.

The previous prime is 25988262889. The next prime is 25988262943. The reversal of 25988262931 is 13926288952.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25988262931 is a prime.

It is a super-2 number, since 2×25988262931² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25988262961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12994131465 + 12994131466.

It is an arithmetic number, because the mean of its divisors is an integer number (12994131466).

Almost surely, 2^25988262931 is an apocalyptic number.

25988262931 is a deficient number, since it is larger than the sum of its proper divisors (1).

25988262931 is an equidigital number, since it uses as much as digits as its factorization.

25988262931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 55.

The spelling of 25988262931 in words is "twenty-five billion, nine hundred eighty-eight million, two hundred sixty-two thousand, nine hundred thirty-one".