11123825 has 6 divisors (see below), whose sum is σ = 13793574. Its totient is φ = 8899040.

The previous prime is 11123773. The next prime is 11123851. The reversal of 11123825 is 52832111.

It is a happy number.

11123825 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 3876961 + 7246864 = 1969^2 + 2692^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11123825 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11123825.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222452 + ... + 222501.

It is an arithmetic number, because the mean of its divisors is an integer number (2298929).

Almost surely, 2^11123825 is an apocalyptic number.

It is an amenable number.

11123825 is a deficient number, since it is larger than the sum of its proper divisors (2669749).

11123825 is an equidigital number, since it uses as much as digits as its factorization.

11123825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444963 (or 444958 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 11123825 is about 3335.2398714335. The cubic root of 11123825 is about 223.2293952134.

Adding to 11123825 its reverse (52832111), we get a palindrome (63955936).

It can be divided in two parts, 11 and 123825, that multiplied together give a triangular number (1362075 = T₁₆₅₀).

The spelling of 11123825 in words is "eleven million, one hundred twenty-three thousand, eight hundred twenty-five".