25893654653 has 2 divisors, whose sum is σ = 25893654654. Its totient is φ = 25893654652.

The previous prime is 25893654643. The next prime is 25893654659. The reversal of 25893654653 is 35645639852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21774838969 + 4118815684 = 147563^2 + 64178^2 .

It is a cyclic number.

It is not a de Polignac number, because 25893654653 - 2⁴ = 25893654637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25893654659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12946827326 + 12946827327.

It is an arithmetic number, because the mean of its divisors is an integer number (12946827327).

Almost surely, 2^25893654653 is an apocalyptic number.

It is an amenable number.

25893654653 is a deficient number, since it is larger than the sum of its proper divisors (1).

25893654653 is an equidigital number, since it uses as much as digits as its factorization.

25893654653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328000, while the sum is 56.

The spelling of 25893654653 in words is "twenty-five billion, eight hundred ninety-three million, six hundred fifty-four thousand, six hundred fifty-three".