52215232 has 42 divisors (see below), whose sum is σ = 105809288. Its totient is φ = 25563648.

The previous prime is 52215223. The next prime is 52215239. The reversal of 52215232 is 23251225.

52215232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52215239) 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 5 ways as a sum of consecutive naturals, for example, 506893 + ... + 506995.

Almost surely, 2^52215232 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 52215232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52904644).

52215232 is an abundant number, since it is smaller than the sum of its proper divisors (53594056).

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

52215232 is an equidigital number, since it uses as much as digits as its factorization.

52215232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 194 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 52215232 is about 7226.0107943457. The cubic root of 52215232 is about 373.7653785017.

Adding to 52215232 its reverse (23251225), we get a palindrome (75466457).

The spelling of 52215232 in words is "fifty-two million, two hundred fifteen thousand, two hundred thirty-two".