550787328 has 432 divisors, whose sum is σ = 2035627776. Its totient is φ = 139345920.

The previous prime is 550787327. The next prime is 550787339. The reversal of 550787328 is 823787055.

550787328 is a `hidden beast` number, since 550 + 7 + 8 + 73 + 28 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550787327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7757533 + ... + 7757603.

Almost surely, 2^550787328 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 550787328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1017813888).

550787328 is an abundant number, since it is smaller than the sum of its proper divisors (1484840448).

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

550787328 is a wasteful number, since it uses less digits than its factorization.

550787328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 550787328 is about 23468.8586855007. The cubic root of 550787328 is about 819.7120384871.

The spelling of 550787328 in words is "five hundred fifty million, seven hundred eighty-seven thousand, three hundred twenty-eight".