566421003 has 6 divisors (see below), whose sum is σ = 818163684. Its totient is φ = 377613996.

The previous prime is 566421001. The next prime is 566421013. The reversal of 566421003 is 300124665.

566421003 is a `hidden beast` number, since 5 + 6 + 642 + 10 + 0 + 3 = 666.

It is not a de Polignac number, because 566421003 - 2¹ = 566421001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (566421001) 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, 31467825 + ... + 31467842.

It is an arithmetic number, because the mean of its divisors is an integer number (136360614).

Almost surely, 2^566421003 is an apocalyptic number.

566421003 is a deficient number, since it is larger than the sum of its proper divisors (251742681).

566421003 is a wasteful number, since it uses less digits than its factorization.

566421003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62935673 (or 62935670 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 566421003 is about 23799.6009000151. The cubic root of 566421003 is about 827.3954270120.

Adding to 566421003 its reverse (300124665), we get a palindrome (866545668).

The spelling of 566421003 in words is "five hundred sixty-six million, four hundred twenty-one thousand, three".