252664219 has 2 divisors, whose sum is σ = 252664220. Its totient is φ = 252664218.

The previous prime is 252664207. The next prime is 252664267. The reversal of 252664219 is 912466252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252664219 - 2¹⁹ = 252139931 is a prime.

It is a super-2 number, since 2×252664219² = 127678415125759922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (252664619) 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, 126332109 + 126332110.

It is an arithmetic number, because the mean of its divisors is an integer number (126332110).

Almost surely, 2^252664219 is an apocalyptic number.

252664219 is a deficient number, since it is larger than the sum of its proper divisors (1).

252664219 is an equidigital number, since it uses as much as digits as its factorization.

252664219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 252664219 is about 15895.4150307565. The cubic root of 252664219 is about 632.1904260804.

The spelling of 252664219 in words is "two hundred fifty-two million, six hundred sixty-four thousand, two hundred nineteen".