12733225 has 6 divisors (see below), whose sum is σ = 15789230. Its totient is φ = 10186560.

The previous prime is 12733223. The next prime is 12733229. The reversal of 12733225 is 52233721.

It can be written as a sum of positive squares in 3 ways, for example, as 2601 + 12730624 = 51^2 + 3568^2 .

It is not a de Polignac number, because 12733225 - 2¹ = 12733223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 509329 = 12733225 / (1 + 2 + 7 + 3 + 3 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 12733225.

It is not an unprimeable number, because it can be changed into a prime (12733223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 254640 + ... + 254689.

Almost surely, 2^12733225 is an apocalyptic number.

It is an amenable number.

12733225 is a deficient number, since it is larger than the sum of its proper divisors (3056005).

12733225 is an equidigital number, since it uses as much as digits as its factorization.

12733225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509339 (or 509334 counting only the distinct ones).

The product of its digits is 2520, while the sum is 25.

The square root of 12733225 is about 3568.3644712949. The cubic root of 12733225 is about 233.5139361389.

Adding to 12733225 its reverse (52233721), we get a palindrome (64966946).

The spelling of 12733225 in words is "twelve million, seven hundred thirty-three thousand, two hundred twenty-five".