555221033 has 2 divisors, whose sum is σ = 555221034. Its totient is φ = 555221032.

The previous prime is 555220999. The next prime is 555221041. The reversal of 555221033 is 330122555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 516743824 + 38477209 = 22732^2 + 6203^2 .

It is a cyclic number.

It is not a de Polignac number, because 555221033 - 2¹⁸ = 554958889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 555220993 and 555221011.

It is not a weakly prime, because it can be changed into another prime (555223033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277610516 + 277610517.

It is an arithmetic number, because the mean of its divisors is an integer number (277610517).

Almost surely, 2^555221033 is an apocalyptic number.

It is an amenable number.

555221033 is a deficient number, since it is larger than the sum of its proper divisors (1).

555221033 is an equidigital number, since it uses as much as digits as its factorization.

555221033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 555221033 is about 23563.1286759632. The cubic root of 555221033 is about 821.9056576014.

Adding to 555221033 its reverse (330122555), we get a palindrome (885343588).

The spelling of 555221033 in words is "five hundred fifty-five million, two hundred twenty-one thousand, thirty-three".