53243712 has 84 divisors (see below), whose sum is σ = 159288480. Its totient is φ = 16972032.

The previous prime is 53243669. The next prime is 53243713. The reversal of 53243712 is 21734235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53243713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11239 + ... + 15257.

Almost surely, 2^53243712 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 53243712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79644240).

53243712 is an abundant number, since it is smaller than the sum of its proper divisors (106044768).

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

53243712 is a wasteful number, since it uses less digits than its factorization.

53243712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060 (or 4047 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 53243712 is about 7296.8289002826. The cubic root of 53243712 is about 376.2034510832.

Adding to 53243712 its reverse (21734235), we get a palindrome (74977947).

It can be divided in two parts, 532 and 43712, that added together give a palindrome (44244).

The spelling of 53243712 in words is "fifty-three million, two hundred forty-three thousand, seven hundred twelve".