12544522 has 32 divisors (see below), whose sum is σ = 21381120. Its totient is φ = 5488560.

The previous prime is 12544513. The next prime is 12544523. The reversal of 12544522 is 22544521.

It is not an unprimeable number, because it can be changed into a prime (12544523) 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 15 ways as a sum of consecutive naturals, for example, 26863 + ... + 27325.

It is an arithmetic number, because the mean of its divisors is an integer number (668160).

Almost surely, 2^12544522 is an apocalyptic number.

12544522 is a deficient number, since it is larger than the sum of its proper divisors (8836598).

12544522 is a wasteful number, since it uses less digits than its factorization.

12544522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538.

The product of its digits is 3200, while the sum is 25.

The square root of 12544522 is about 3541.8246709853. The cubic root of 12544522 is about 232.3546522848.

Subtracting 12544522 from its reverse (22544521), we obtain a palindrome (9999999).

It can be divided in two parts, 1254 and 4522, that added together give a square (5776 = 76²).

The spelling of 12544522 in words is "twelve million, five hundred forty-four thousand, five hundred twenty-two".