503481 has 24 divisors (see below), whose sum is σ = 787360. Its totient is φ = 285120.

The previous prime is 503453. The next prime is 503483. The reversal of 503481 is 184305.

503481 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 503481 - 2¹³ = 495289 is a prime.

It is a super-2 number, since 2×503481² = 506986234722, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 503481.

It is not an unprimeable number, because it can be changed into a prime (503483) 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 23 ways as a sum of consecutive naturals, for example, 6861 + ... + 6933.

2⁵⁰³⁴⁸¹ is an apocalyptic number.

It is an amenable number.

503481 is a deficient number, since it is larger than the sum of its proper divisors (283879).

503481 is a wasteful number, since it uses less digits than its factorization.

503481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 503481 is about 709.5639506063. The cubic root of 503481 is about 79.5538182325.

Multiplying 503481 by its sum of digits (21), we get a triangular number (10573101 = T₄₅₉₈).

Adding to 503481 its reverse (184305), we get a palindrome (687786).

It can be divided in two parts, 5034 and 81, that added together give a palindrome (5115).

The spelling of 503481 in words is "five hundred three thousand, four hundred eighty-one".