550384164 has 144 divisors (see below), whose sum is σ = 1574052480. Its totient is φ = 160704000.

The previous prime is 550384117. The next prime is 550384169. The reversal of 550384164 is 461483055.

It is a happy number.

550384164 is a `hidden beast` number, since 550 + 3 + 8 + 41 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (550384169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1769569 + ... + 1769879.

It is an arithmetic number, because the mean of its divisors is an integer number (10930920).

Almost surely, 2^550384164 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 550384164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787026240).

550384164 is an abundant number, since it is smaller than the sum of its proper divisors (1023668316).

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

550384164 is a wasteful number, since it uses less digits than its factorization.

550384164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 550384164 is about 23460.2677734079. The cubic root of 550384164 is about 819.5119860443.

The spelling of 550384164 in words is "five hundred fifty million, three hundred eighty-four thousand, one hundred sixty-four".