12555412 has 6 divisors (see below), whose sum is σ = 21971978. Its totient is φ = 6277704.

The previous prime is 12555397. The next prime is 12555443. The reversal of 12555412 is 21455521.

It can be written as a sum of positive squares in only one way, i.e., 9036036 + 3519376 = 3006^2 + 1876^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1569423 + ... + 1569430.

Almost surely, 2^12555412 is an apocalyptic number.

It is an amenable number.

12555412 is a deficient number, since it is larger than the sum of its proper divisors (9416566).

12555412 is a wasteful number, since it uses less digits than its factorization.

12555412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138857 (or 3138855 counting only the distinct ones).

The product of its digits is 2000, while the sum is 25.

The square root of 12555412 is about 3543.3616806643. The cubic root of 12555412 is about 232.4218691495.

The spelling of 12555412 in words is "twelve million, five hundred fifty-five thousand, four hundred twelve".