52212243 has 8 divisors (see below), whose sum is σ = 69727168. Its totient is φ = 34752744.

The previous prime is 52212239. The next prime is 52212269. The reversal of 52212243 is 34221225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52212243 - 2² = 52212239 is a prime.

It is a super-2 number, since 2×52212243² = 5452236638182098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52212203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11605 + ... + 15462.

It is an arithmetic number, because the mean of its divisors is an integer number (8715896).

Almost surely, 2^52212243 is an apocalyptic number.

52212243 is a deficient number, since it is larger than the sum of its proper divisors (17514925).

52212243 is a wasteful number, since it uses less digits than its factorization.

52212243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27713.

The product of its digits is 960, while the sum is 21.

The square root of 52212243 is about 7225.8039691096. The cubic root of 52212243 is about 373.7582464447.

Adding to 52212243 its reverse (34221225), we get a palindrome (86433468).

The spelling of 52212243 in words is "fifty-two million, two hundred twelve thousand, two hundred forty-three".