252217244 has 12 divisors (see below), whose sum is σ = 442168104. Its totient is φ = 125883504.

The previous prime is 252217213. The next prime is 252217289. The reversal of 252217244 is 442712252.

It is a super-2 number, since 2×252217244² = 127227076341911072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53747 + ... + 58250.

It is an arithmetic number, because the mean of its divisors is an integer number (36847342).

Almost surely, 2^252217244 is an apocalyptic number.

It is an amenable number.

252217244 is a deficient number, since it is larger than the sum of its proper divisors (189950860).

252217244 is a wasteful number, since it uses less digits than its factorization.

252217244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112564 (or 112562 counting only the distinct ones).

The product of its digits is 8960, while the sum is 29.

The square root of 252217244 is about 15881.3489351503. The cubic root of 252217244 is about 631.8174144086.

Adding to 252217244 its reverse (442712252), we get a palindrome (694929496).

The spelling of 252217244 in words is "two hundred fifty-two million, two hundred seventeen thousand, two hundred forty-four".