25253065163 has 2 divisors, whose sum is σ = 25253065164. Its totient is φ = 25253065162.

The previous prime is 25253065147. The next prime is 25253065177. The reversal of 25253065163 is 36156035252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25253065163 - 2⁴ = 25253065147 is a prime.

It is not a weakly prime, because it can be changed into another prime (25253065133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12626532581 + 12626532582.

It is an arithmetic number, because the mean of its divisors is an integer number (12626532582).

Almost surely, 2^25253065163 is an apocalyptic number.

25253065163 is a deficient number, since it is larger than the sum of its proper divisors (1).

25253065163 is an equidigital number, since it uses as much as digits as its factorization.

25253065163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 25253065163 in words is "twenty-five billion, two hundred fifty-three million, sixty-five thousand, one hundred sixty-three".