6605543 has 6 divisors (see below), whose sum is σ = 7684056. Its totient is φ = 5661852.

The previous prime is 6605527. The next prime is 6605561. The reversal of 6605543 is 3455066.

6605543 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 6605543 - 2⁴ = 6605527 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605513) 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, 67355 + ... + 67452.

It is an arithmetic number, because the mean of its divisors is an integer number (1280676).

Almost surely, 2^6605543 is an apocalyptic number.

6605543 is a deficient number, since it is larger than the sum of its proper divisors (1078513).

6605543 is a wasteful number, since it uses less digits than its factorization.

6605543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134821 (or 134814 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 6605543 is about 2570.1250942318. The cubic root of 6605543 is about 187.6302431379.

The spelling of 6605543 in words is "six million, six hundred five thousand, five hundred forty-three".