52216752 has 90 divisors (see below), whose sum is σ = 157976868. Its totient is φ = 14818944.

The previous prime is 52216727. The next prime is 52216753. The reversal of 52216752 is 25761225.

It is not an unprimeable number, because it can be changed into a prime (52216753) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 350374 + ... + 350522.

Almost surely, 2^52216752 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 52216752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78988434).

52216752 is an abundant number, since it is smaller than the sum of its proper divisors (105760116).

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

52216752 is a wasteful number, since it uses less digits than its factorization.

52216752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 161 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 52216752 is about 7226.1159691774. The cubic root of 52216752 is about 373.7690052714.

Adding to 52216752 its reverse (25761225), we get a palindrome (77977977).

The spelling of 52216752 in words is "fifty-two million, two hundred sixteen thousand, seven hundred fifty-two".