551339866 has 24 divisors (see below), whose sum is σ = 1049491296. Its totient is φ = 214807320.

The previous prime is 551339857. The next prime is 551339897. The reversal of 551339866 is 668933155.

551339866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254646 + ... + 256801.

It is an arithmetic number, because the mean of its divisors is an integer number (43728804).

Almost surely, 2^551339866 is an apocalyptic number.

551339866 is a deficient number, since it is larger than the sum of its proper divisors (498151430).

551339866 is a wasteful number, since it uses less digits than its factorization.

551339866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511474 (or 511467 counting only the distinct ones).

The product of its digits is 583200, while the sum is 46.

The square root of 551339866 is about 23480.6274618035. The cubic root of 551339866 is about 819.9860527074.

The spelling of 551339866 in words is "five hundred fifty-one million, three hundred thirty-nine thousand, eight hundred sixty-six".