12553543 has 6 divisors (see below), whose sum is σ = 12972552. Its totient is φ = 12147660.

The previous prime is 12553529. The next prime is 12553553. The reversal of 12553543 is 34535521.

12553543 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12553543 - 2⁵ = 12553511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12553523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5571 + ... + 7492.

It is an arithmetic number, because the mean of its divisors is an integer number (2162092).

Almost surely, 2^12553543 is an apocalyptic number.

12553543 is a deficient number, since it is larger than the sum of its proper divisors (419009).

12553543 is an equidigital number, since it uses as much as digits as its factorization.

12553543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13125 (or 13094 counting only the distinct ones).

The product of its digits is 9000, while the sum is 28.

The square root of 12553543 is about 3543.0979382456. The cubic root of 12553543 is about 232.4103357956.

The spelling of 12553543 in words is "twelve million, five hundred fifty-three thousand, five hundred forty-three".