551916916 has 12 divisors (see below), whose sum is σ = 982225440. Its totient is φ = 271281080.

The previous prime is 551916899. The next prime is 551916961. The reversal of 551916916 is 619619155.

It is a super-2 number, since 2×551916916² = 609224564333902112, which contains 22 as substring.

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, 1169080 + ... + 1169551.

It is an arithmetic number, because the mean of its divisors is an integer number (81852120).

Almost surely, 2^551916916 is an apocalyptic number.

It is an amenable number.

551916916 is a deficient number, since it is larger than the sum of its proper divisors (430308524).

551916916 is a wasteful number, since it uses less digits than its factorization.

551916916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338694 (or 2338692 counting only the distinct ones).

The product of its digits is 72900, while the sum is 43.

The square root of 551916916 is about 23492.9120374636. The cubic root of 551916916 is about 820.2720275344.

The spelling of 551916916 in words is "five hundred fifty-one million, nine hundred sixteen thousand, nine hundred sixteen".