11223506 has 32 divisors (see below), whose sum is σ = 20224512. Its totient is φ = 4570560.

The previous prime is 11223503. The next prime is 11223521. The reversal of 11223506 is 60532211.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11223503) 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, 24116 + ... + 24576.

It is an arithmetic number, because the mean of its divisors is an integer number (632016).

Almost surely, 2^11223506 is an apocalyptic number.

11223506 is a deficient number, since it is larger than the sum of its proper divisors (9001006).

11223506 is a wasteful number, since it uses less digits than its factorization.

11223506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 11223506 is about 3350.1501458890. The cubic root of 11223506 is about 223.8942022705.

Adding to 11223506 its reverse (60532211), we get a palindrome (71755717).

The spelling of 11223506 in words is "eleven million, two hundred twenty-three thousand, five hundred six".