25653835652 has 36 divisors (see below), whose sum is σ = 47782482804. Its totient is φ = 12009876480.

The previous prime is 25653835651. The next prime is 25653835679.

It is a happy number.

25653835652 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 5402838016 + 20250997636 = 73504^2 + 142306^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25653835652.

It is not an unprimeable number, because it can be changed into a prime (25653835651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2634152 + ... + 2643872.

It is an arithmetic number, because the mean of its divisors is an integer number (1327291189).

Almost surely, 2^25653835652 is an apocalyptic number.

It is an amenable number.

25653835652 is a deficient number, since it is larger than the sum of its proper divisors (22128647152).

25653835652 is a wasteful number, since it uses less digits than its factorization.

25653835652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10136 (or 9937 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 50.

The spelling of 25653835652 in words is "twenty-five billion, six hundred fifty-three million, eight hundred thirty-five thousand, six hundred fifty-two".