566420503 has 4 divisors (see below), whose sum is σ = 617913288. Its totient is φ = 514927720.

The previous prime is 566420483. The next prime is 566420509. The reversal of 566420503 is 305024665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 566420503 - 2²⁹ = 29549591 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 (566420509) 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 3 ways as a sum of consecutive naturals, for example, 25746376 + ... + 25746397.

It is an arithmetic number, because the mean of its divisors is an integer number (154478322).

Almost surely, 2^566420503 is an apocalyptic number.

566420503 is a deficient number, since it is larger than the sum of its proper divisors (51492785).

566420503 is a wasteful number, since it uses less digits than its factorization.

566420503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51492784.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 566420503 is about 23799.5903956350. The cubic root of 566420503 is about 827.3951835548.

The spelling of 566420503 in words is "five hundred sixty-six million, four hundred twenty thousand, five hundred three".