52242220 has 24 divisors (see below), whose sum is σ = 109890144. Its totient is φ = 20862336.

The previous prime is 52242209. The next prime is 52242227. The reversal of 52242220 is 2224225.

52242220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52242227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12744 + ... + 16336.

It is an arithmetic number, because the mean of its divisors is an integer number (4578756).

Almost surely, 2^52242220 is an apocalyptic number.

It is an amenable number.

52242220 is an abundant number, since it is smaller than the sum of its proper divisors (57647924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52242220 is a wasteful number, since it uses less digits than its factorization.

52242220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4329 (or 4327 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 52242220 is about 7227.8779735134. The cubic root of 52242220 is about 373.8297622856.

Adding to 52242220 its reverse (2224225), we get a palindrome (54466445).

The spelling of 52242220 in words is "fifty-two million, two hundred forty-two thousand, two hundred twenty".