5566541 has 2 divisors, whose sum is σ = 5566542. Its totient is φ = 5566540.

The previous prime is 5566523. The next prime is 5566543. The reversal of 5566541 is 1456655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5428900 + 137641 = 2330^2 + 371^2 .

It is a cyclic number.

It is not a de Polignac number, because 5566541 - 2¹⁴ = 5550157 is a prime.

Together with 5566543, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5566498 and 5566507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5566543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2783270 + 2783271.

It is an arithmetic number, because the mean of its divisors is an integer number (2783271).

Almost surely, 2^5566541 is an apocalyptic number.

It is an amenable number.

5566541 is a deficient number, since it is larger than the sum of its proper divisors (1).

5566541 is an equidigital number, since it uses as much as digits as its factorization.

5566541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 32.

The square root of 5566541 is about 2359.3518177669. The cubic root of 5566541 is about 177.2264224366.

It can be divided in two parts, 556654 and 1, that added together give a palindrome (556655).

The spelling of 5566541 in words is "five million, five hundred sixty-six thousand, five hundred forty-one".