550728226 has 24 divisors (see below), whose sum is σ = 882612720. Its totient is φ = 257669952.

The previous prime is 550728193. The next prime is 550728229. The reversal of 550728226 is 622827055.

It is not an unprimeable number, because it can be changed into a prime (550728229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100801 + ... + 106123.

It is an arithmetic number, because the mean of its divisors is an integer number (36775530).

Almost surely, 2^550728226 is an apocalyptic number.

550728226 is a deficient number, since it is larger than the sum of its proper divisors (331884494).

550728226 is a wasteful number, since it uses less digits than its factorization.

550728226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5538 (or 5521 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 550728226 is about 23467.5994937701. The cubic root of 550728226 is about 819.6827178211.

It can be divided in two parts, 5507 and 28226, that added together give a palindrome (33733).

The spelling of 550728226 in words is "five hundred fifty million, seven hundred twenty-eight thousand, two hundred twenty-six".