550221253 has 2 divisors, whose sum is σ = 550221254. Its totient is φ = 550221252.

The previous prime is 550221239. The next prime is 550221257. The reversal of 550221253 is 352122055.

It is a happy number.

550221253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 549527364 + 693889 = 23442^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 550221253 - 2¹⁷ = 550090181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550221257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275110626 + 275110627.

It is an arithmetic number, because the mean of its divisors is an integer number (275110627).

Almost surely, 2^550221253 is an apocalyptic number.

It is an amenable number.

550221253 is a deficient number, since it is larger than the sum of its proper divisors (1).

550221253 is an equidigital number, since it uses as much as digits as its factorization.

550221253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 550221253 is about 23456.7954546225. The cubic root of 550221253 is about 819.4311208955.

The spelling of 550221253 in words is "five hundred fifty million, two hundred twenty-one thousand, two hundred fifty-three".