25911113 has 2 divisors, whose sum is σ = 25911114. Its totient is φ = 25911112.

The previous prime is 25911103. The next prime is 25911157. The reversal of 25911113 is 31111952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15976009 + 9935104 = 3997^2 + 3152^2 .

It is a cyclic number.

It is not a de Polignac number, because 25911113 - 2¹² = 25907017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25911103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12955556 + 12955557.

It is an arithmetic number, because the mean of its divisors is an integer number (12955557).

Almost surely, 2^25911113 is an apocalyptic number.

It is an amenable number.

25911113 is a deficient number, since it is larger than the sum of its proper divisors (1).

25911113 is an equidigital number, since it uses as much as digits as its factorization.

25911113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 23.

The square root of 25911113 is about 5090.2959638905. The cubic root of 25911113 is about 295.9116221727.

The spelling of 25911113 in words is "twenty-five million, nine hundred eleven thousand, one hundred thirteen".