52818280 has 32 divisors (see below), whose sum is σ = 122941800. Its totient is φ = 20398336.

The previous prime is 52818257. The next prime is 52818287. The reversal of 52818280 is 8281825.

It is a happy number.

52818280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42693156 + 10125124 = 6534^2 + 3182^2 .

It is not an unprimeable number, because it can be changed into a prime (52818287) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21607 + ... + 23926.

Almost surely, 2^52818280 is an apocalyptic number.

It is an amenable number.

52818280 is an abundant number, since it is smaller than the sum of its proper divisors (70123520).

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

52818280 is a wasteful number, since it uses less digits than its factorization.

52818280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45573 (or 45569 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 52818280 is about 7267.6185920837. The cubic root of 52818280 is about 375.1987805374.

The spelling of 52818280 in words is "fifty-two million, eight hundred eighteen thousand, two hundred eighty".