564321503 has 8 divisors (see below), whose sum is σ = 575137200. Its totient is φ = 553576320.

The previous prime is 564321493. The next prime is 564321517. The reversal of 564321503 is 305123465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564321503 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 (564321523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1328 + ... + 33621.

It is an arithmetic number, because the mean of its divisors is an integer number (71892150).

Almost surely, 2^564321503 is an apocalyptic number.

564321503 is a deficient number, since it is larger than the sum of its proper divisors (10815697).

564321503 is a wasteful number, since it uses less digits than its factorization.

564321503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35257.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 564321503 is about 23755.4520689462. The cubic root of 564321503 is about 826.3718848117.

Adding to 564321503 its reverse (305123465), we get a palindrome (869444968).

The spelling of 564321503 in words is "five hundred sixty-four million, three hundred twenty-one thousand, five hundred three".