52181802 has 48 divisors (see below), whose sum is σ = 118692288. Its totient is φ = 16536960.

The previous prime is 52181761. The next prime is 52181813. The reversal of 52181802 is 20818125.

52181802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99513 + ... + 100035.

It is an arithmetic number, because the mean of its divisors is an integer number (2472756).

Almost surely, 2^52181802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52181802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59346144).

52181802 is an abundant number, since it is smaller than the sum of its proper divisors (66510486).

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

52181802 is a wasteful number, since it uses less digits than its factorization.

52181802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 52181802 is about 7223.6972527924. The cubic root of 52181802 is about 373.6855956258.

Adding to 52181802 its reverse (20818125), we get a palindrome (72999927).

The spelling of 52181802 in words is "fifty-two million, one hundred eighty-one thousand, eight hundred two".