551120216 has 16 divisors (see below), whose sum is σ = 1047507000. Its totient is φ = 271785024.

The previous prime is 551120189. The next prime is 551120231. The reversal of 551120216 is 612021155.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 551120191 and 551120200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471266 + ... + 472433.

Almost surely, 2^551120216 is an apocalyptic number.

It is an amenable number.

551120216 is a deficient number, since it is larger than the sum of its proper divisors (496386784).

551120216 is a wasteful number, since it uses less digits than its factorization.

551120216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943778 (or 943774 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 551120216 is about 23475.9497358467. The cubic root of 551120216 is about 819.8771459810.

The spelling of 551120216 in words is "five hundred fifty-one million, one hundred twenty thousand, two hundred sixteen".