550368 has 144 divisors (see below), whose sum is σ = 2010960. Its totient is φ = 145152.

The previous prime is 550351. The next prime is 550369. The reversal of 550368 is 863055.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550369) by changing a digit.

550368 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42330 + ... + 42342.

It is an arithmetic number, because the mean of its divisors is an integer number (13965).

2⁵⁵⁰³⁶⁸ 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 550368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1005480).

550368 is an abundant number, since it is smaller than the sum of its proper divisors (1460592).

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

550368 is a wasteful number, since it uses less digits than its factorization.

550368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 550368 is about 741.8679127715. The cubic root of 550368 is about 81.9503963332.

The spelling of 550368 in words is "five hundred fifty thousand, three hundred sixty-eight".