25601233111 has 2 divisors, whose sum is σ = 25601233112. Its totient is φ = 25601233110.

The previous prime is 25601233069. The next prime is 25601233153. The reversal of 25601233111 is 11133210652.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (25601233069) and next prime (25601233153).

It is a cyclic number.

It is not a de Polignac number, because 25601233111 - 2⁹ = 25601232599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25601234111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12800616555 + 12800616556.

It is an arithmetic number, because the mean of its divisors is an integer number (12800616556).

Almost surely, 2^25601233111 is an apocalyptic number.

25601233111 is a deficient number, since it is larger than the sum of its proper divisors (1).

25601233111 is an equidigital number, since it uses as much as digits as its factorization.

25601233111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 25601233111 its reverse (11133210652), we get a palindrome (36734443763).

The spelling of 25601233111 in words is "twenty-five billion, six hundred one million, two hundred thirty-three thousand, one hundred eleven".