12226553 has 8 divisors (see below), whose sum is σ = 13092840. Its totient is φ = 11376640.

The previous prime is 12226549. The next prime is 12226561. The reversal of 12226553 is 35562221.

It can be written as a sum of positive squares in 4 ways, for example, as 1024144 + 11202409 = 1012^2 + 3347^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12226553 - 2² = 12226549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12226573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2528 + ... + 5553.

It is an arithmetic number, because the mean of its divisors is an integer number (1636605).

Almost surely, 2^12226553 is an apocalyptic number.

It is an amenable number.

12226553 is a deficient number, since it is larger than the sum of its proper divisors (866287).

12226553 is an equidigital number, since it uses as much as digits as its factorization.

12226553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8187.

The product of its digits is 3600, while the sum is 26.

The square root of 12226553 is about 3496.6488242316. The cubic root of 12226553 is about 230.3746446124.

Adding to 12226553 its reverse (35562221), we get a palindrome (47788774).

The spelling of 12226553 in words is "twelve million, two hundred twenty-six thousand, five hundred fifty-three".