503216 has 20 divisors (see below), whose sum is σ = 1114512. Its totient is φ = 215616.

The previous prime is 503213. The next prime is 503227. The reversal of 503216 is 612305.

503216 is nontrivially palindromic in base 3.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 503194 and 503203.

It is not an unprimeable number, because it can be changed into a prime (503213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135 + ... + 2358.

2⁵⁰³²¹⁶ is an apocalyptic number.

503216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

503216 is an abundant number, since it is smaller than the sum of its proper divisors (611296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503216 is a wasteful number, since it uses less digits than its factorization.

503216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508 (or 4502 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 503216 is about 709.3771916266. The cubic root of 503216 is about 79.5398584461.

The spelling of 503216 in words is "five hundred three thousand, two hundred sixteen".