551768916 has 24 divisors (see below), whose sum is σ = 1290340800. Its totient is φ = 183511552.

The previous prime is 551768891. The next prime is 551768923. The reversal of 551768916 is 619867155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45816 + ... + 56591.

It is an arithmetic number, because the mean of its divisors is an integer number (53764200).

Almost surely, 2^551768916 is an apocalyptic number.

It is an amenable number.

551768916 is an abundant number, since it is smaller than the sum of its proper divisors (738571884).

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

551768916 is a wasteful number, since it uses less digits than its factorization.

551768916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102863 (or 102861 counting only the distinct ones).

The product of its digits is 453600, while the sum is 48.

The square root of 551768916 is about 23489.7619400453. The cubic root of 551768916 is about 820.1987006081.

The spelling of 551768916 in words is "five hundred fifty-one million, seven hundred sixty-eight thousand, nine hundred sixteen".