25244146163 has 2 divisors, whose sum is σ = 25244146164. Its totient is φ = 25244146162.

The previous prime is 25244146061. The next prime is 25244146189. The reversal of 25244146163 is 36164144252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25244146163 - 2²² = 25239951859 is a prime.

It is not a weakly prime, because it can be changed into another prime (25244146463) 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 as a sum of consecutive naturals, namely, 12622073081 + 12622073082.

It is an arithmetic number, because the mean of its divisors is an integer number (12622073082).

Almost surely, 2^25244146163 is an apocalyptic number.

25244146163 is a deficient number, since it is larger than the sum of its proper divisors (1).

25244146163 is an equidigital number, since it uses as much as digits as its factorization.

25244146163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 38.

The spelling of 25244146163 in words is "twenty-five billion, two hundred forty-four million, one hundred forty-six thousand, one hundred sixty-three".