53223612 has 48 divisors (see below), whose sum is σ = 137370912. Its totient is φ = 15932160.

The previous prime is 53223601. The next prime is 53223629. The reversal of 53223612 is 21632235.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162 + ... + 10382.

It is an arithmetic number, because the mean of its divisors is an integer number (2861894).

Almost surely, 2^53223612 is an apocalyptic number.

53223612 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53223612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68685456).

53223612 is an abundant number, since it is smaller than the sum of its proper divisors (84147300).

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

53223612 is a wasteful number, since it uses less digits than its factorization.

53223612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9278 (or 9276 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 53223612 is about 7295.4514596425. The cubic root of 53223612 is about 376.1561050160.

Adding to 53223612 its reverse (21632235), we get a palindrome (74855847).

It can be divided in two parts, 53223 and 612, that added together give a palindrome (53835).

The spelling of 53223612 in words is "fifty-three million, two hundred twenty-three thousand, six hundred twelve".