25256595263 has 2 divisors, whose sum is σ = 25256595264. Its totient is φ = 25256595262.

The previous prime is 25256595209. The next prime is 25256595269. The reversal of 25256595263 is 36259565252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25256595263 - 2¹⁸ = 25256333119 is a prime.

It is a super-3 number, since 3×25256595263³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25256595269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12628297631 + 12628297632.

It is an arithmetic number, because the mean of its divisors is an integer number (12628297632).

Almost surely, 2^25256595263 is an apocalyptic number.

25256595263 is a deficient number, since it is larger than the sum of its proper divisors (1).

25256595263 is an equidigital number, since it uses as much as digits as its factorization.

25256595263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860000, while the sum is 50.

The spelling of 25256595263 in words is "twenty-five billion, two hundred fifty-six million, five hundred ninety-five thousand, two hundred sixty-three".