25648883653 has 16 divisors (see below), whose sum is σ = 26545651776. Its totient is φ = 24768057600.

The previous prime is 25648883641. The next prime is 25648883713. The reversal of 25648883653 is 35638884652.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25648883653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25648883053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5512378 + ... + 5517028.

It is an arithmetic number, because the mean of its divisors is an integer number (1659103236).

Almost surely, 2^25648883653 is an apocalyptic number.

It is an amenable number.

25648883653 is a deficient number, since it is larger than the sum of its proper divisors (896768123).

25648883653 is a wasteful number, since it uses less digits than its factorization.

25648883653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6324.

The product of its digits is 33177600, while the sum is 58.

Subtracting 25648883653 from its reverse (35638884652), we obtain a palindrome (9990000999).

The spelling of 25648883653 in words is "twenty-five billion, six hundred forty-eight million, eight hundred eighty-three thousand, six hundred fifty-three".