52018866 has 48 divisors (see below), whose sum is σ = 117374400. Its totient is φ = 16629984.

The previous prime is 52018859. The next prime is 52018877. The reversal of 52018866 is 66881025.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52018866.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118275 + ... + 118713.

It is an arithmetic number, because the mean of its divisors is an integer number (2445300).

Almost surely, 2^52018866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52018866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58687200).

52018866 is an abundant number, since it is smaller than the sum of its proper divisors (65355534).

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

52018866 is a wasteful number, since it uses less digits than its factorization.

52018866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 52018866 is about 7212.4105540381. The cubic root of 52018866 is about 373.2962496825.

The spelling of 52018866 in words is "fifty-two million, eighteen thousand, eight hundred sixty-six".