11115225 has 60 divisors (see below), whose sum is σ = 22506000. Its totient is φ = 5378400.

The previous prime is 11115193. The next prime is 11115227. The reversal of 11115225 is 52251111.

It is not a de Polignac number, because 11115225 - 2⁵ = 11115193 is a prime.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11115198 and 11115207.

It is not an unprimeable number, because it can be changed into a prime (11115227) by changing a digit.

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 59 ways as a sum of consecutive naturals, for example, 22026 + ... + 22524.

It is an arithmetic number, because the mean of its divisors is an integer number (375100).

Almost surely, 2^11115225 is an apocalyptic number.

11115225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11115225 is an abundant number, since it is smaller than the sum of its proper divisors (11390775).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11115225 is a wasteful number, since it uses less digits than its factorization.

11115225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 518 counting only the distinct ones).

The product of its digits is 100, while the sum is 18.

The square root of 11115225 is about 3333.9503595585. The cubic root of 11115225 is about 223.1718530236.

Adding to 11115225 its reverse (52251111), we get a palindrome (63366336).

It can be divided in two parts, 1111 and 5225, that added together give a palindrome (6336).

The spelling of 11115225 in words is "eleven million, one hundred fifteen thousand, two hundred twenty-five".