5566003 has 2 divisors, whose sum is σ = 5566004. Its totient is φ = 5566002.

The previous prime is 5565997. The next prime is 5566013. The reversal of 5566003 is 3006655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5566003 - 2⁹ = 5565491 is a prime.

It is not a weakly prime, because it can be changed into another prime (5566013) 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 as a sum of consecutive naturals, namely, 2783001 + 2783002.

It is an arithmetic number, because the mean of its divisors is an integer number (2783002).

Almost surely, 2^5566003 is an apocalyptic number.

5566003 is a deficient number, since it is larger than the sum of its proper divisors (1).

5566003 is an equidigital number, since it uses as much as digits as its factorization.

5566003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 5566003 is about 2359.2378006466. The cubic root of 5566003 is about 177.2207126738.

It can be divided in two parts, 55 and 66003, that multiplied together give a triangular number (3630165 = T₂₆₉₄).

The spelling of 5566003 in words is "five million, five hundred sixty-six thousand, three".