52115712 has 144 divisors (see below), whose sum is σ = 156979200. Its totient is φ = 15206400.

The previous prime is 52115683. The next prime is 52115717. The reversal of 52115712 is 21751125.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (52115717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261789 + ... + 261987.

Almost surely, 2^52115712 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 52115712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78489600).

52115712 is an abundant number, since it is smaller than the sum of its proper divisors (104863488).

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

52115712 is a wasteful number, since it uses less digits than its factorization.

52115712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 246 counting only the distinct ones).

The product of its digits is 700, while the sum is 24.

The square root of 52115712 is about 7219.1212761665. The cubic root of 52115712 is about 373.5277672010.

Adding to 52115712 its reverse (21751125), we get a palindrome (73866837).

The spelling of 52115712 in words is "fifty-two million, one hundred fifteen thousand, seven hundred twelve".