12733556 has 18 divisors (see below), whose sum is σ = 24494610. Its totient is φ = 5787760.

The previous prime is 12733541. The next prime is 12733597. The reversal of 12733556 is 65533721.

It can be written as a sum of positive squares in only one way, i.e., 8179600 + 4553956 = 2860^2 + 2134^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12671 + ... + 13638.

Almost surely, 2^12733556 is an apocalyptic number.

It is an amenable number.

12733556 is a deficient number, since it is larger than the sum of its proper divisors (11761054).

12733556 is a wasteful number, since it uses less digits than its factorization.

12733556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26335 (or 26322 counting only the distinct ones).

The product of its digits is 18900, while the sum is 32.

The square root of 12733556 is about 3568.4108507850. The cubic root of 12733556 is about 233.5159595185.

The spelling of 12733556 in words is "twelve million, seven hundred thirty-three thousand, five hundred fifty-six".