12550225 has 12 divisors (see below), whose sum is σ = 15606640. Its totient is φ = 10011600.

The previous prime is 12550183. The next prime is 12550229. The reversal of 12550225 is 52205521.

It is not a de Polignac number, because 12550225 - 2¹¹ = 12548177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12550196 and 12550205.

It is not an unprimeable number, because it can be changed into a prime (12550229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15070 + ... + 15880.

Almost surely, 2^12550225 is an apocalyptic number.

It is an amenable number.

12550225 is a deficient number, since it is larger than the sum of its proper divisors (3056415).

12550225 is an equidigital number, since it uses as much as digits as its factorization.

12550225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 12550225 is about 3542.6296729972. The cubic root of 12550225 is about 232.3898580324.

Adding to 12550225 its reverse (52205521), we get a palindrome (64755746).

The spelling of 12550225 in words is "twelve million, five hundred fifty thousand, two hundred twenty-five".