53223212 has 36 divisors (see below), whose sum is σ = 108783360. Its totient is φ = 22718304.

The previous prime is 53223197. The next prime is 53223217. The reversal of 53223212 is 21232235.

53223212 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 (53223217) 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 11 ways as a sum of consecutive naturals, for example, 74714 + ... + 75422.

It is an arithmetic number, because the mean of its divisors is an integer number (3021760).

Almost surely, 2^53223212 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 53223212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54391680).

53223212 is an abundant number, since it is smaller than the sum of its proper divisors (55560148).

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

53223212 is a wasteful number, since it uses less digits than its factorization.

53223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1101 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 53223212 is about 7295.4240452492. The cubic root of 53223212 is about 376.1551626847.

Adding to 53223212 its reverse (21232235), we get a palindrome (74455447).

It can be divided in two parts, 53223 and 212, that added together give a palindrome (53435).

The spelling of 53223212 in words is "fifty-three million, two hundred twenty-three thousand, two hundred twelve".