5566543 has 2 divisors, whose sum is σ = 5566544. Its totient is φ = 5566542.

The previous prime is 5566541. The next prime is 5566553. The reversal of 5566543 is 3456655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5566543 - 2¹ = 5566541 is a prime.

Together with 5566541, it forms a pair of twin primes.

5566543 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5566499 and 5566508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5566541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2783271 + 2783272.

It is an arithmetic number, because the mean of its divisors is an integer number (2783272).

Almost surely, 2^5566543 is an apocalyptic number.

5566543 is a deficient number, since it is larger than the sum of its proper divisors (1).

5566543 is an equidigital number, since it uses as much as digits as its factorization.

5566543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 34.

The square root of 5566543 is about 2359.3522416121. The cubic root of 5566543 is about 177.2264436618.

It can be divided in two parts, 55 and 66543, that multiplied together give a triangular number (3659865 = T₂₇₀₅).

The spelling of 5566543 in words is "five million, five hundred sixty-six thousand, five hundred forty-three".