532553221 has 2 divisors, whose sum is σ = 532553222. Its totient is φ = 532553220.

The previous prime is 532553209. The next prime is 532553233. The reversal of 532553221 is 122355235.

It is a balanced prime because it is at equal distance from previous prime (532553209) and next prime (532553233).

It can be written as a sum of positive squares in only one way, i.e., 415588996 + 116964225 = 20386^2 + 10815^2 .

It is a cyclic number.

It is not a de Polignac number, because 532553221 - 2⁷ = 532553093 is a prime.

It is a super-2 number, since 2×532553221² = 567225866394949682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 532553221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (532553251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266276610 + 266276611.

It is an arithmetic number, because the mean of its divisors is an integer number (266276611).

Almost surely, 2^532553221 is an apocalyptic number.

It is an amenable number.

532553221 is a deficient number, since it is larger than the sum of its proper divisors (1).

532553221 is an equidigital number, since it uses as much as digits as its factorization.

532553221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 28.

The square root of 532553221 is about 23077.1146593330. The cubic root of 532553221 is about 810.5646730685.

The spelling of 532553221 in words is "five hundred thirty-two million, five hundred fifty-three thousand, two hundred twenty-one".