11512255 has 4 divisors (see below), whose sum is σ = 13814712. Its totient is φ = 9209800.

The previous prime is 11512243. The next prime is 11512301. The reversal of 11512255 is 55221511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11512255 - 2⁵ = 11512223 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1151221 + ... + 1151230.

It is an arithmetic number, because the mean of its divisors is an integer number (3453678).

Almost surely, 2^11512255 is an apocalyptic number.

11512255 is a deficient number, since it is larger than the sum of its proper divisors (2302457).

11512255 is an equidigital number, since it uses as much as digits as its factorization.

11512255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302456.

The product of its digits is 500, while the sum is 22.

The square root of 11512255 is about 3392.9714116096. The cubic root of 11512255 is about 225.7980222232.

Adding to 11512255 its reverse (55221511), we get a palindrome (66733766).

The spelling of 11512255 in words is "eleven million, five hundred twelve thousand, two hundred fifty-five".