52118660 has 48 divisors (see below), whose sum is σ = 120016512. Its totient is φ = 18854400.

The previous prime is 52118611. The next prime is 52118669. The reversal of 52118660 is 6681125.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (52118669) 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, 52529 + ... + 53511.

It is an arithmetic number, because the mean of its divisors is an integer number (2500344).

Almost surely, 2^52118660 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 52118660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60008256).

52118660 is an abundant number, since it is smaller than the sum of its proper divisors (67897852).

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

52118660 is a wasteful number, since it uses less digits than its factorization.

52118660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 52118660 is about 7219.3254532539. The cubic root of 52118660 is about 373.5348101129.

Adding to 52118660 its reverse (6681125), we get a palindrome (58799785).

The spelling of 52118660 in words is "fifty-two million, one hundred eighteen thousand, six hundred sixty".