550506366 has 24 divisors (see below), whose sum is σ = 1204348080. Its totient is φ = 181719936.

The previous prime is 550506349. The next prime is 550506421. The reversal of 550506366 is 663605055.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 550506366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146611 + ... + 150318.

It is an arithmetic number, because the mean of its divisors is an integer number (50181170).

Almost surely, 2^550506366 is an apocalyptic number.

550506366 is an abundant number, since it is smaller than the sum of its proper divisors (653841714).

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

550506366 is a wasteful number, since it uses less digits than its factorization.

550506366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297040 (or 297037 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 550506366 is about 23462.8720748335. The cubic root of 550506366 is about 819.5726337393.

It can be divided in two parts, 55050 and 6366, that added together give a palindrome (61416).

The spelling of 550506366 in words is "five hundred fifty million, five hundred six thousand, three hundred sixty-six".