25146836653 has 2 divisors, whose sum is σ = 25146836654. Its totient is φ = 25146836652.

The previous prime is 25146836651. The next prime is 25146836657. The reversal of 25146836653 is 35663864152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17135333604 + 8011503049 = 130902^2 + 89507^2 .

It is a cyclic number.

It is not a de Polignac number, because 25146836653 - 2¹ = 25146836651 is a prime.

Together with 25146836651, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25146836597 and 25146836606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25146836651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12573418326 + 12573418327.

It is an arithmetic number, because the mean of its divisors is an integer number (12573418327).

Almost surely, 2^25146836653 is an apocalyptic number.

It is an amenable number.

25146836653 is a deficient number, since it is larger than the sum of its proper divisors (1).

25146836653 is an equidigital number, since it uses as much as digits as its factorization.

25146836653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3110400, while the sum is 49.

The spelling of 25146836653 in words is "twenty-five billion, one hundred forty-six million, eight hundred thirty-six thousand, six hundred fifty-three".