25131768625163 has 2 divisors, whose sum is σ = 25131768625164. Its totient is φ = 25131768625162.

The previous prime is 25131768625099. The next prime is 25131768625169. The reversal of 25131768625163 is 36152686713152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25131768625163 - 2⁶ = 25131768625099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25131768625099 and 25131768625108.

It is not a weakly prime, because it can be changed into another prime (25131768625169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12565884312581 + 12565884312582.

It is an arithmetic number, because the mean of its divisors is an integer number (12565884312582).

Almost surely, 2^{25131768625163} is an apocalyptic number.

25131768625163 is a deficient number, since it is larger than the sum of its proper divisors (1).

25131768625163 is an equidigital number, since it uses as much as digits as its factorization.

25131768625163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10886400, while the sum is 56.

The spelling of 25131768625163 in words is "twenty-five trillion, one hundred thirty-one billion, seven hundred sixty-eight million, six hundred twenty-five thousand, one hundred sixty-three".