25613220116111 has 2 divisors, whose sum is σ = 25613220116112. Its totient is φ = 25613220116110.

The previous prime is 25613220116053. The next prime is 25613220116213. The reversal of 25613220116111 is 11161102231652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25613220116111 - 2⁶ = 25613220116047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25613220118111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12806610058055 + 12806610058056.

It is an arithmetic number, because the mean of its divisors is an integer number (12806610058056).

Almost surely, 2^{25613220116111} is an apocalyptic number.

25613220116111 is a deficient number, since it is larger than the sum of its proper divisors (1).

25613220116111 is an equidigital number, since it uses as much as digits as its factorization.

25613220116111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 32.

Adding to 25613220116111 its reverse (11161102231652), we get a palindrome (36774322347763).

The spelling of 25613220116111 in words is "twenty-five trillion, six hundred thirteen billion, two hundred twenty million, one hundred sixteen thousand, one hundred eleven".