503023 has 4 divisors (see below), whose sum is σ = 512568. Its totient is φ = 493480.

The previous prime is 503017. The next prime is 503039. The reversal of 503023 is 320305.

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 503023 - 2¹⁷ = 371951 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 502994 and 503012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4693 + ... + 4798.

It is an arithmetic number, because the mean of its divisors is an integer number (128142).

2⁵⁰³⁰²³ is an apocalyptic number.

503023 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

503023 is a deficient number, since it is larger than the sum of its proper divisors (9545).

503023 is an equidigital number, since it uses as much as digits as its factorization.

503023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9544.

The product of its (nonzero) digits is 90, while the sum is 13.

The square root of 503023 is about 709.2411437586. The cubic root of 503023 is about 79.5296884226.

Adding to 503023 its reverse (320305), we get a palindrome (823328).

It can be divided in two parts, 50302 and 3, that added together give a palindrome (50305).

The spelling of 503023 in words is "five hundred three thousand, twenty-three".