12505012 has 24 divisors (see below), whose sum is σ = 23810472. Its totient is φ = 5712000.

The previous prime is 12504977. The next prime is 12505037. The reversal of 12505012 is 21050521.

It can be written as a sum of positive squares in 4 ways, for example, as 156816 + 12348196 = 396^2 + 3514^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4062 + ... + 6442.

It is an arithmetic number, because the mean of its divisors is an integer number (992103).

Almost surely, 2^12505012 is an apocalyptic number.

It is an amenable number.

12505012 is a deficient number, since it is larger than the sum of its proper divisors (11305460).

12505012 is a wasteful number, since it uses less digits than its factorization.

12505012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499 (or 2497 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 12505012 is about 3536.2426387339. The cubic root of 12505012 is about 232.1104557269.

Adding to 12505012 its reverse (21050521), we get a palindrome (33555533).

The spelling of 12505012 in words is "twelve million, five hundred five thousand, twelve".