550773216 has 192 divisors, whose sum is σ = 1932940800. Its totient is φ = 149050368.

The previous prime is 550773211. The next prime is 550773217. The reversal of 550773216 is 612377055.

550773216 is a `hidden beast` number, since 550 + 77 + 32 + 1 + 6 = 666.

It is a super-2 number, since 2×550773216² = 606702270925965312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550773211) 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, 112516 + ... + 117308.

It is an arithmetic number, because the mean of its divisors is an integer number (10067400).

Almost surely, 2^550773216 is an apocalyptic number.

550773216 is a gapful number since it is divisible by the number (56) 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 550773216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (966470400).

550773216 is an abundant number, since it is smaller than the sum of its proper divisors (1382167584).

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

550773216 is a wasteful number, since it uses less digits than its factorization.

550773216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4838 (or 4824 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 550773216 is about 23468.5580298407. The cubic root of 550773216 is about 819.7050376754.

The spelling of 550773216 in words is "five hundred fifty million, seven hundred seventy-three thousand, two hundred sixteen".