503505216 has 84 divisors (see below), whose sum is σ = 1454781952. Its totient is φ = 166489344.

The previous prime is 503505203. The next prime is 503505227. The reversal of 503505216 is 612505305.

It is a self number, because there is not a number n which added to its sum of digits gives 503505216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69711 + ... + 76593.

Almost surely, 2^503505216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503505216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727390976).

503505216 is an abundant number, since it is smaller than the sum of its proper divisors (951276736).

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

503505216 is a wasteful number, since it uses less digits than its factorization.

503505216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7028 (or 7015 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 503505216 is about 22438.9218992357. The cubic root of 503505216 is about 795.5509364932.

The spelling of 503505216 in words is "five hundred three million, five hundred five thousand, two hundred sixteen".