6536543 has 12 divisors (see below), whose sum is σ = 7214760. Its totient is φ = 5886816.

The previous prime is 6536527. The next prime is 6536557. The reversal of 6536543 is 3456356.

It is not a de Polignac number, because 6536543 - 2⁴ = 6536527 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 (6536503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36428 + ... + 36606.

It is an arithmetic number, because the mean of its divisors is an integer number (601230).

Almost surely, 2^6536543 is an apocalyptic number.

6536543 is a deficient number, since it is larger than the sum of its proper divisors (678217).

6536543 is a wasteful number, since it uses less digits than its factorization.

6536543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 245 counting only the distinct ones).

The product of its digits is 32400, while the sum is 32.

The square root of 6536543 is about 2556.6663841808. Note that the first 3 decimals coincide. The cubic root of 6536543 is about 186.9746407698.

The spelling of 6536543 in words is "six million, five hundred thirty-six thousand, five hundred forty-three".