505532216 has 24 divisors (see below), whose sum is σ = 1102628520. Its totient is φ = 216656496.

The previous prime is 505532191. The next prime is 505532233. The reversal of 505532216 is 612235505.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 644420 + ... + 645203.

It is an arithmetic number, because the mean of its divisors is an integer number (45942855).

Almost surely, 2^505532216 is an apocalyptic number.

505532216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

505532216 is an abundant number, since it is smaller than the sum of its proper divisors (597096304).

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

505532216 is a wasteful number, since it uses less digits than its factorization.

505532216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289643 (or 1289632 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 505532216 is about 22484.0435865082. The cubic root of 505532216 is about 796.6170774578.

The spelling of 505532216 in words is "five hundred five million, five hundred thirty-two thousand, two hundred sixteen".