551616216 has 32 divisors (see below), whose sum is σ = 1379689200. Its totient is φ = 183785600.

The previous prime is 551616211. The next prime is 551616217. The reversal of 551616216 is 612616155.

551616216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551616211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65866 + ... + 73766.

Almost surely, 2^551616216 is an apocalyptic number.

It is an amenable number.

551616216 is an abundant number, since it is smaller than the sum of its proper divisors (828072984).

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

551616216 is a wasteful number, since it uses less digits than its factorization.

551616216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10819 (or 10815 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 551616216 is about 23486.5113629079. The cubic root of 551616216 is about 820.1230313116.

The spelling of 551616216 in words is "five hundred fifty-one million, six hundred sixteen thousand, two hundred sixteen".