25105411361 has 2 divisors, whose sum is σ = 25105411362. Its totient is φ = 25105411360.

The previous prime is 25105411337. The next prime is 25105411367. The reversal of 25105411361 is 16311450152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24863297761 + 242113600 = 157681^2 + 15560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25105411361 is a prime.

It is not a weakly prime, because it can be changed into another prime (25105411367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12552705680 + 12552705681.

It is an arithmetic number, because the mean of its divisors is an integer number (12552705681).

Almost surely, 2^25105411361 is an apocalyptic number.

It is an amenable number.

25105411361 is a deficient number, since it is larger than the sum of its proper divisors (1).

25105411361 is an equidigital number, since it uses as much as digits as its factorization.

25105411361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 25105411361 in words is "twenty-five billion, one hundred five million, four hundred eleven thousand, three hundred sixty-one".