12551012 has 18 divisors (see below), whose sum is σ = 22500198. Its totient is φ = 6125952.

The previous prime is 12551009. The next prime is 12551017. The reversal of 12551012 is 21015521.

It can be written as a sum of positive squares in only one way, i.e., 12432676 + 118336 = 3526^2 + 344^2 .

It is not an unprimeable number, because it can be changed into a prime (12551017) 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, 6548 + ... + 8244.

It is an arithmetic number, because the mean of its divisors is an integer number (1250011).

Almost surely, 2^12551012 is an apocalyptic number.

It is an amenable number.

12551012 is a deficient number, since it is larger than the sum of its proper divisors (9949186).

12551012 is a wasteful number, since it uses less digits than its factorization.

12551012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 12551012 is about 3542.7407469359. The cubic root of 12551012 is about 232.3947155016.

Adding to 12551012 its reverse (21015521), we get a palindrome (33566533).

The spelling of 12551012 in words is "twelve million, five hundred fifty-one thousand, twelve".