25914008599961 has 2 divisors, whose sum is σ = 25914008599962. Its totient is φ = 25914008599960.

The previous prime is 25914008599939. The next prime is 25914008599979. The reversal of 25914008599961 is 16999580041952.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13625695690000 + 12288312909961 = 3691300^2 + 3505469^2 .

It is a cyclic number.

It is not a de Polignac number, because 25914008599961 - 2²² = 25914004405657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25914008599891 and 25914008599900.

It is not a weakly prime, because it can be changed into another prime (25914008599981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12957004299980 + 12957004299981.

It is an arithmetic number, because the mean of its divisors is an integer number (12957004299981).

Almost surely, 2^{25914008599961} is an apocalyptic number.

It is an amenable number.

25914008599961 is a deficient number, since it is larger than the sum of its proper divisors (1).

25914008599961 is an equidigital number, since it uses as much as digits as its factorization.

25914008599961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62985600, while the sum is 68.

The spelling of 25914008599961 in words is "twenty-five trillion, nine hundred fourteen billion, eight million, five hundred ninety-nine thousand, nine hundred sixty-one".