25692994651 has 2 divisors, whose sum is σ = 25692994652. Its totient is φ = 25692994650.

The previous prime is 25692994619. The next prime is 25692994669. The reversal of 25692994651 is 15649929652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25692994651 - 2⁵ = 25692994619 is a prime.

It is a super-2 number, since 2×25692994651² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25692994051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12846497325 + 12846497326.

It is an arithmetic number, because the mean of its divisors is an integer number (12846497326).

Almost surely, 2^25692994651 is an apocalyptic number.

25692994651 is a deficient number, since it is larger than the sum of its proper divisors (1).

25692994651 is an equidigital number, since it uses as much as digits as its factorization.

25692994651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10497600, while the sum is 58.

The spelling of 25692994651 in words is "twenty-five billion, six hundred ninety-two million, nine hundred ninety-four thousand, six hundred fifty-one".