503073 has 6 divisors (see below), whose sum is σ = 726674. Its totient is φ = 335376.

The previous prime is 503053. The next prime is 503077. The reversal of 503073 is 370305.

It can be written as a sum of positive squares in only one way, i.e., 439569 + 63504 = 663^2 + 252^2 .

It is not a de Polignac number, because 503073 - 2¹² = 498977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 503073.

It is not an unprimeable number, because it can be changed into a prime (503077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27940 + ... + 27957.

2⁵⁰³⁰⁷³ is an apocalyptic number.

It is an amenable number.

503073 is a deficient number, since it is larger than the sum of its proper divisors (223601).

503073 is a wasteful number, since it uses less digits than its factorization.

503073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55903 (or 55900 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 18.

The square root of 503073 is about 709.2763918248. The cubic root of 503073 is about 79.5323233934.

Adding to 503073 its reverse (370305), we get a palindrome (873378).

The spelling of 503073 in words is "five hundred three thousand, seventy-three".