52815760 has 20 divisors (see below), whose sum is σ = 122796828. Its totient is φ = 21126272.

The previous prime is 52815743. The next prime is 52815767. The reversal of 52815760 is 6751825.

52815760 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 2 ways, for example, as 25441936 + 27373824 = 5044^2 + 5232^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (52815767) 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 3 ways as a sum of consecutive naturals, for example, 330019 + ... + 330178.

Almost surely, 2^52815760 is an apocalyptic number.

It is an amenable number.

52815760 is an abundant number, since it is smaller than the sum of its proper divisors (69981068).

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

52815760 is a wasteful number, since it uses less digits than its factorization.

52815760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660210 (or 660204 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 52815760 is about 7267.4452182318. The cubic root of 52815760 is about 375.1928134369.

The spelling of 52815760 in words is "fifty-two million, eight hundred fifteen thousand, seven hundred sixty".