551788844 has 12 divisors (see below), whose sum is σ = 991728864. Its totient is φ = 268437744.

The previous prime is 551788841. The next prime is 551788849. The reversal of 551788844 is 448887155.

It is a junction number, because it is equal to n+sod(n) for n = 551788792 and 551788801.

It is not an unprimeable number, because it can be changed into a prime (551788841) 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, 1864004 + ... + 1864299.

It is an arithmetic number, because the mean of its divisors is an integer number (82644072).

Almost surely, 2^551788844 is an apocalyptic number.

It is an amenable number.

551788844 is a deficient number, since it is larger than the sum of its proper divisors (439940020).

551788844 is a wasteful number, since it uses less digits than its factorization.

551788844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728344 (or 3728342 counting only the distinct ones).

The product of its digits is 1433600, while the sum is 50.

The square root of 551788844 is about 23490.1861210166. The cubic root of 551788844 is about 820.2085747435.

The spelling of 551788844 in words is "five hundred fifty-one million, seven hundred eighty-eight thousand, eight hundred forty-four".