5221243252 has 12 divisors (see below), whose sum is σ = 9674656740. Its totient is φ = 2457055616.

The previous prime is 5221243243. The next prime is 5221243267. The reversal of 5221243252 is 2523421225.

It can be written as a sum of positive squares in 2 ways, for example, as 3750827536 + 1470415716 = 61244^2 + 38346^2 .

It is a super-2 number, since 2×5221243252² = 54522762193111071008, 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 5221243252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38391427 + ... + 38391562.

It is an arithmetic number, because the mean of its divisors is an integer number (806221395).

Almost surely, 2^5221243252 is an apocalyptic number.

It is an amenable number.

5221243252 is a deficient number, since it is larger than the sum of its proper divisors (4453413488).

5221243252 is a wasteful number, since it uses less digits than its factorization.

5221243252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76783010 (or 76783008 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 5221243252 is about 72258.1708320934. The cubic root of 5221243252 is about 1734.8342021969.

Adding to 5221243252 its reverse (2523421225), we get a palindrome (7744664477).

The spelling of 5221243252 in words is "five billion, two hundred twenty-one million, two hundred forty-three thousand, two hundred fifty-two".