551778224 has 20 divisors (see below), whose sum is σ = 1069965000. Its totient is φ = 275658240.

The previous prime is 551778223. The next prime is 551778277. The reversal of 551778224 is 422877155.

551778224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (551778223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6179 + ... + 33789.

It is an arithmetic number, because the mean of its divisors is an integer number (53498250).

Almost surely, 2^551778224 is an apocalyptic number.

It is an amenable number.

551778224 is a deficient number, since it is larger than the sum of its proper divisors (518186776).

551778224 is a wasteful number, since it uses less digits than its factorization.

551778224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28868 (or 28862 counting only the distinct ones).

The product of its digits is 156800, while the sum is 41.

The square root of 551778224 is about 23489.9600680801. The cubic root of 551778224 is about 820.2033126636.

The spelling of 551778224 in words is "five hundred fifty-one million, seven hundred seventy-eight thousand, two hundred twenty-four".