52222320 has 100 divisors (see below), whose sum is σ = 181398360. Its totient is φ = 13924224.

The previous prime is 52222309. The next prime is 52222327. The reversal of 52222320 is 2322225.

52222320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 52222293 and 52222302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52222327) 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 19 ways as a sum of consecutive naturals, for example, 2451 + ... + 10509.

Almost surely, 2^52222320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90699180).

52222320 is an abundant number, since it is smaller than the sum of its proper divisors (129176040).

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

52222320 is a wasteful number, since it uses less digits than its factorization.

52222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8084 (or 8069 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 52222320 is about 7226.5012281186. The cubic root of 52222320 is about 373.7822901003.

Adding to 52222320 its reverse (2322225), we get a palindrome (54544545).

The spelling of 52222320 in words is "fifty-two million, two hundred twenty-two thousand, three hundred twenty".