25262788769 has 2 divisors, whose sum is σ = 25262788770. Its totient is φ = 25262788768.

The previous prime is 25262788757. The next prime is 25262788841. The reversal of 25262788769 is 96788726252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22650250000 + 2612538769 = 150500^2 + 51113^2 .

It is a cyclic number.

It is not a de Polignac number, because 25262788769 - 2⁸ = 25262788513 is a prime.

It is a super-2 number, since 2×25262788769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25262788709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12631394384 + 12631394385.

It is an arithmetic number, because the mean of its divisors is an integer number (12631394385).

Almost surely, 2^25262788769 is an apocalyptic number.

It is an amenable number.

25262788769 is a deficient number, since it is larger than the sum of its proper divisors (1).

25262788769 is an equidigital number, since it uses as much as digits as its factorization.

25262788769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40642560, while the sum is 62.

The spelling of 25262788769 in words is "twenty-five billion, two hundred sixty-two million, seven hundred eighty-eight thousand, seven hundred sixty-nine".