2505128548163 has 2 divisors, whose sum is σ = 2505128548164. Its totient is φ = 2505128548162.

The previous prime is 2505128548123. The next prime is 2505128548201. The reversal of 2505128548163 is 3618458215052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2505128548163 - 2²⁰ = 2505127499587 is a prime.

It is not a weakly prime, because it can be changed into another prime (2505128548103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252564274081 + 1252564274082.

It is an arithmetic number, because the mean of its divisors is an integer number (1252564274082).

Almost surely, 2^{2505128548163} is an apocalyptic number.

2505128548163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505128548163 is an equidigital number, since it uses as much as digits as its factorization.

2505128548163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304000, while the sum is 50.

The spelling of 2505128548163 in words is "two trillion, five hundred five billion, one hundred twenty-eight million, five hundred forty-eight thousand, one hundred sixty-three".