25265128753 has 2 divisors, whose sum is σ = 25265128754. Its totient is φ = 25265128752.

The previous prime is 25265128741. The next prime is 25265128789. The reversal of 25265128753 is 35782156252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20430985969 + 4834142784 = 142937^2 + 69528^2 .

It is a cyclic number.

It is not a de Polignac number, because 25265128753 - 2⁹ = 25265128241 is a prime.

It is not a weakly prime, because it can be changed into another prime (25265128853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12632564376 + 12632564377.

It is an arithmetic number, because the mean of its divisors is an integer number (12632564377).

Almost surely, 2^25265128753 is an apocalyptic number.

It is an amenable number.

25265128753 is a deficient number, since it is larger than the sum of its proper divisors (1).

25265128753 is an equidigital number, since it uses as much as digits as its factorization.

25265128753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008000, while the sum is 46.

The spelling of 25265128753 in words is "twenty-five billion, two hundred sixty-five million, one hundred twenty-eight thousand, seven hundred fifty-three".