550381500 has 192 divisors, whose sum is σ = 1813593600. Its totient is φ = 144072000.

The previous prime is 550381487. The next prime is 550381519. The reversal of 550381500 is 5183055.

550381500 is a `hidden beast` number, since 5 + 503 + 8 + 150 + 0 = 666.

550381500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 796155 + ... + 796845.

It is an arithmetic number, because the mean of its divisors is an integer number (9445800).

Almost surely, 2^550381500 is an apocalyptic number.

550381500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550381500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (906796800).

550381500 is an abundant number, since it is smaller than the sum of its proper divisors (1263212100).

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

550381500 is a wasteful number, since it uses less digits than its factorization.

550381500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 550381500 is about 23460.2109964936. The cubic root of 550381500 is about 819.5106638263.

The spelling of 550381500 in words is "five hundred fifty million, three hundred eighty-one thousand, five hundred".