550064856 has 128 divisors (see below), whose sum is σ = 1556755200. Its totient is φ = 160512000.

The previous prime is 550064843. The next prime is 550064857. The reversal of 550064856 is 658460055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550064857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 963051 + ... + 963621.

It is an arithmetic number, because the mean of its divisors is an integer number (12162150).

Almost surely, 2^550064856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550064856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (778377600).

550064856 is an abundant number, since it is smaller than the sum of its proper divisors (1006690344).

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

550064856 is a wasteful number, since it uses less digits than its factorization.

550064856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 550064856 is about 23453.4614929225. The cubic root of 550064856 is about 819.3534741229.

The spelling of 550064856 in words is "five hundred fifty million, sixty-four thousand, eight hundred fifty-six".