503361 has 16 divisors (see below), whose sum is σ = 757120. Its totient is φ = 330480.

The previous prime is 503359. The next prime is 503369. The reversal of 503361 is 163305.

It is not a de Polignac number, because 503361 - 2¹ = 503359 is a prime.

It is a Duffinian number.

503361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (503369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2691 + ... + 2871.

It is an arithmetic number, because the mean of its divisors is an integer number (47320).

2⁵⁰³³⁶¹ is an apocalyptic number.

It is an amenable number.

503361 is a deficient number, since it is larger than the sum of its proper divisors (253759).

503361 is a wasteful number, since it uses less digits than its factorization.

503361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 503361 is about 709.4793865927. The cubic root of 503361 is about 79.5474974268.

Adding to 503361 its reverse (163305), we get a palindrome (666666).

The spelling of 503361 in words is "five hundred three thousand, three hundred sixty-one".