52815866 has 8 divisors (see below), whose sum is σ = 82668384. Its totient is φ = 25259740.

The previous prime is 52815857. The next prime is 52815869. The reversal of 52815866 is 66851825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (52815869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574040 + ... + 574131.

It is an arithmetic number, because the mean of its divisors is an integer number (10333548).

Almost surely, 2^52815866 is an apocalyptic number.

52815866 is a deficient number, since it is larger than the sum of its proper divisors (29852518).

52815866 is a wasteful number, since it uses less digits than its factorization.

52815866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148196.

The product of its digits is 115200, while the sum is 41.

The square root of 52815866 is about 7267.4525110248. The cubic root of 52815866 is about 375.1930644378.

The spelling of 52815866 in words is "fifty-two million, eight hundred fifteen thousand, eight hundred sixty-six".