550305366 has 64 divisors (see below), whose sum is σ = 1256779776. Its totient is φ = 159408000.

The previous prime is 550305361. The next prime is 550305373. The reversal of 550305366 is 663503055.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550305361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86391 + ... + 92541.

It is an arithmetic number, because the mean of its divisors is an integer number (19637184).

Almost surely, 2^550305366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550305366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628389888).

550305366 is an abundant number, since it is smaller than the sum of its proper divisors (706474410).

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

550305366 is a wasteful number, since it uses less digits than its factorization.

550305366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6237.

The product of its (nonzero) digits is 40500, while the sum is 33.

The square root of 550305366 is about 23458.5883206982. The cubic root of 550305366 is about 819.4728745825.

The spelling of 550305366 in words is "five hundred fifty million, three hundred five thousand, three hundred sixty-six".