11224555 has 4 divisors (see below), whose sum is σ = 13469472. Its totient is φ = 8979640.

The previous prime is 11224523. The next prime is 11224559. The reversal of 11224555 is 55542211.

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

It is not a de Polignac number, because 11224555 - 2⁵ = 11224523 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11224559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122451 + ... + 1122460.

It is an arithmetic number, because the mean of its divisors is an integer number (3367368).

Almost surely, 2^11224555 is an apocalyptic number.

11224555 is a deficient number, since it is larger than the sum of its proper divisors (2244917).

11224555 is an equidigital number, since it uses as much as digits as its factorization.

11224555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244916.

The product of its digits is 2000, while the sum is 25.

The square root of 11224555 is about 3350.3067023782. The cubic root of 11224555 is about 223.9011774439.

Adding to 11224555 its reverse (55542211), we get a palindrome (66766766).

The spelling of 11224555 in words is "eleven million, two hundred twenty-four thousand, five hundred fifty-five".