550388384 has 216 divisors, whose sum is σ = 1429964928. Its totient is φ = 207567360.

The previous prime is 550388383. The next prime is 550388393. The reversal of 550388384 is 483883055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550388381) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8214719 + ... + 8214785.

It is an arithmetic number, because the mean of its divisors is an integer number (6620208).

Almost surely, 2^550388384 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 550388384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714982464).

550388384 is an abundant number, since it is smaller than the sum of its proper divisors (879576544).

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

550388384 is a wasteful number, since it uses less digits than its factorization.

550388384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 44.

The square root of 550388384 is about 23460.3577125329. The cubic root of 550388384 is about 819.5140805399.

The spelling of 550388384 in words is "five hundred fifty million, three hundred eighty-eight thousand, three hundred eighty-four".