219055252 has 12 divisors (see below), whose sum is σ = 412834996. Its totient is φ = 101102400.

The previous prime is 219055189. The next prime is 219055253. The reversal of 219055252 is 252550912.

It can be written as a sum of positive squares in 2 ways, for example, as 92852496 + 126202756 = 9636^2 + 11234^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219055253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2106249 + ... + 2106352.

Almost surely, 2^219055252 is an apocalyptic number.

It is an amenable number.

219055252 is a deficient number, since it is larger than the sum of its proper divisors (193779744).

219055252 is a wasteful number, since it uses less digits than its factorization.

219055252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4212618 (or 4212616 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 219055252 is about 14800.5152613009. The cubic root of 219055252 is about 602.8157027308.

The spelling of 219055252 in words is "two hundred nineteen million, fifty-five thousand, two hundred fifty-two".