25101765606349 has 2 divisors, whose sum is σ = 25101765606350. Its totient is φ = 25101765606348.

The previous prime is 25101765606341. The next prime is 25101765606409. The reversal of 25101765606349 is 94360656710152.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15836937589225 + 9264828017124 = 3979565^2 + 3043818^2 .

It is a cyclic number.

It is not a de Polignac number, because 25101765606349 - 2³ = 25101765606341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25101765606349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25101765606341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12550882803174 + 12550882803175.

It is an arithmetic number, because the mean of its divisors is an integer number (12550882803175).

Almost surely, 2^{25101765606349} is an apocalyptic number.

It is an amenable number.

25101765606349 is a deficient number, since it is larger than the sum of its proper divisors (1).

25101765606349 is an equidigital number, since it uses as much as digits as its factorization.

25101765606349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 25101765606349 in words is "twenty-five trillion, one hundred one billion, seven hundred sixty-five million, six hundred six thousand, three hundred forty-nine".