12227525 has 6 divisors (see below), whose sum is σ = 15162162. Its totient is φ = 9782000.

The previous prime is 12227521. The next prime is 12227533. The reversal of 12227525 is 52572221.

It can be written as a sum of positive squares in 3 ways, for example, as 214369 + 12013156 = 463^2 + 3466^2 .

It is not a de Polignac number, because 12227525 - 2² = 12227521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12227494 and 12227503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12227521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244526 + ... + 244575.

It is an arithmetic number, because the mean of its divisors is an integer number (2527027).

Almost surely, 2^12227525 is an apocalyptic number.

It is an amenable number.

12227525 is a deficient number, since it is larger than the sum of its proper divisors (2934637).

12227525 is an equidigital number, since it uses as much as digits as its factorization.

12227525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489111 (or 489106 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 12227525 is about 3496.7878116923. The cubic root of 12227525 is about 230.3807493099.

Adding to 12227525 its reverse (52572221), we get a palindrome (64799746).

The spelling of 12227525 in words is "twelve million, two hundred twenty-seven thousand, five hundred twenty-five".