550635728 has 30 divisors (see below), whose sum is σ = 1073323602. Its totient is φ = 273658560.

The previous prime is 550635721. The next prime is 550635773. The reversal of 550635728 is 827536055.

It can be written as a sum of positive squares in only one way, i.e., 344770624 + 205865104 = 18568^2 + 14348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550635721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 711950 + ... + 712722.

Almost surely, 2^550635728 is an apocalyptic number.

It is an amenable number.

550635728 is a deficient number, since it is larger than the sum of its proper divisors (522687874).

550635728 is an equidigital number, since it uses as much as digits as its factorization.

550635728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 550635728 is about 23465.6286512848. The cubic root of 550635728 is about 819.6368250960.

The spelling of 550635728 in words is "five hundred fifty million, six hundred thirty-five thousand, seven hundred twenty-eight".