25113249653 has 2 divisors, whose sum is σ = 25113249654. Its totient is φ = 25113249652.

The previous prime is 25113249619. The next prime is 25113249661. The reversal of 25113249653 is 35694231152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15957247684 + 9156001969 = 126322^2 + 95687^2 .

It is a cyclic number.

It is not a de Polignac number, because 25113249653 - 2⁶ = 25113249589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25113249653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25113249053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12556624826 + 12556624827.

It is an arithmetic number, because the mean of its divisors is an integer number (12556624827).

Almost surely, 2^25113249653 is an apocalyptic number.

It is an amenable number.

25113249653 is a deficient number, since it is larger than the sum of its proper divisors (1).

25113249653 is an equidigital number, since it uses as much as digits as its factorization.

25113249653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 41.

The spelling of 25113249653 in words is "twenty-five billion, one hundred thirteen million, two hundred forty-nine thousand, six hundred fifty-three".