25962162491 has 2 divisors, whose sum is σ = 25962162492. Its totient is φ = 25962162490.

The previous prime is 25962162469. The next prime is 25962162497. The reversal of 25962162491 is 19426126952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25962162491 - 2⁶ = 25962162427 is a prime.

It is not a weakly prime, because it can be changed into another prime (25962162497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12981081245 + 12981081246.

It is an arithmetic number, because the mean of its divisors is an integer number (12981081246).

Almost surely, 2^25962162491 is an apocalyptic number.

25962162491 is a deficient number, since it is larger than the sum of its proper divisors (1).

25962162491 is an equidigital number, since it uses as much as digits as its factorization.

25962162491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 47.

The spelling of 25962162491 in words is "twenty-five billion, nine hundred sixty-two million, one hundred sixty-two thousand, four hundred ninety-one".