25262788757 has 2 divisors, whose sum is σ = 25262788758. Its totient is φ = 25262788756.

The previous prime is 25262788709. The next prime is 25262788769. The reversal of 25262788757 is 75788726252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12781206916 + 12481581841 = 113054^2 + 111721^2 .

It is a cyclic number.

It is not a de Polignac number, because 25262788757 - 2³² = 20967821461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25262788696 and 25262788705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25262748757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12631394378 + 12631394379.

It is an arithmetic number, because the mean of its divisors is an integer number (12631394379).

Almost surely, 2^25262788757 is an apocalyptic number.

It is an amenable number.

25262788757 is a deficient number, since it is larger than the sum of its proper divisors (1).

25262788757 is an equidigital number, since it uses as much as digits as its factorization.

25262788757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26342400, while the sum is 59.

The spelling of 25262788757 in words is "twenty-five billion, two hundred sixty-two million, seven hundred eighty-eight thousand, seven hundred fifty-seven".