25025917915963 has 2 divisors, whose sum is σ = 25025917915964. Its totient is φ = 25025917915962.

The previous prime is 25025917915961. The next prime is 25025917915997. The reversal of 25025917915963 is 36951971952052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25025917915963 - 2¹ = 25025917915961 is a prime.

Together with 25025917915961, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25025917915895 and 25025917915904.

It is not a weakly prime, because it can be changed into another prime (25025917915961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12512958957981 + 12512958957982.

It is an arithmetic number, because the mean of its divisors is an integer number (12512958957982).

Almost surely, 2^{25025917915963} is an apocalyptic number.

25025917915963 is a deficient number, since it is larger than the sum of its proper divisors (1).

25025917915963 is an equidigital number, since it uses as much as digits as its factorization.

25025917915963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45927000, while the sum is 64.

The spelling of 25025917915963 in words is "twenty-five trillion, twenty-five billion, nine hundred seventeen million, nine hundred fifteen thousand, nine hundred sixty-three".