12225553 has 2 divisors, whose sum is σ = 12225554. Its totient is φ = 12225552.

The previous prime is 12225527. The next prime is 12225611. The reversal of 12225553 is 35552221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9443329 + 2782224 = 3073^2 + 1668^2 .

It is a cyclic number.

It is not a de Polignac number, because 12225553 - 2⁹ = 12225041 is a prime.

It is not a weakly prime, because it can be changed into another prime (12225853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112776 + 6112777.

It is an arithmetic number, because the mean of its divisors is an integer number (6112777).

Almost surely, 2^12225553 is an apocalyptic number.

It is an amenable number.

12225553 is a deficient number, since it is larger than the sum of its proper divisors (1).

12225553 is an equidigital number, since it uses as much as digits as its factorization.

12225553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000, while the sum is 25.

The square root of 12225553 is about 3496.5058272510. The cubic root of 12225553 is about 230.3683637218.

Adding to 12225553 its reverse (35552221), we get a palindrome (47777774).

The spelling of 12225553 in words is "twelve million, two hundred twenty-five thousand, five hundred fifty-three".