11225505 has 16 divisors (see below), whose sum is σ = 18190080. Its totient is φ = 5910528.

The previous prime is 11225497. The next prime is 11225507. The reversal of 11225505 is 50552211.

It is not a de Polignac number, because 11225505 - 2³ = 11225497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11225507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3552 + ... + 5921.

It is an arithmetic number, because the mean of its divisors is an integer number (1136880).

Almost surely, 2^11225505 is an apocalyptic number.

11225505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11225505 is a deficient number, since it is larger than the sum of its proper divisors (6964575).

11225505 is an equidigital number, since it uses as much as digits as its factorization.

11225505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9560.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 11225505 is about 3350.4484774430. The cubic root of 11225505 is about 223.9074939562.

Adding to 11225505 its reverse (50552211), we get a palindrome (61777716).

The spelling of 11225505 in words is "eleven million, two hundred twenty-five thousand, five hundred five".