11243255555 has 12 divisors (see below), whose sum is σ = 15694667280. Its totient is φ = 7709660784.

The previous prime is 11243255549. The next prime is 11243255587. The reversal of 11243255555 is 55555234211.

11243255555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11243255555 - 2⁴ = 11243255539 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22945175 + ... + 22945664.

It is an arithmetic number, because the mean of its divisors is an integer number (1307888940).

Almost surely, 2^11243255555 is an apocalyptic number.

11243255555 is a deficient number, since it is larger than the sum of its proper divisors (4451411725).

11243255555 is an equidigital number, since it uses as much as digits as its factorization.

11243255555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45890858 (or 45890851 counting only the distinct ones).

The product of its digits is 150000, while the sum is 38.

Adding to 11243255555 its reverse (55555234211), we get a palindrome (66798489766).

The spelling of 11243255555 in words is "eleven billion, two hundred forty-three million, two hundred fifty-five thousand, five hundred fifty-five".