52143665 has 8 divisors (see below), whose sum is σ = 71511360. Its totient is φ = 35755632.

The previous prime is 52143659. The next prime is 52143683. The reversal of 52143665 is 56634125.

52143665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 52143665 - 2⁶ = 52143601 is a prime.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 744875 + ... + 744944.

It is an arithmetic number, because the mean of its divisors is an integer number (8938920).

Almost surely, 2^52143665 is an apocalyptic number.

It is an amenable number.

52143665 is a deficient number, since it is larger than the sum of its proper divisors (19367695).

52143665 is a wasteful number, since it uses less digits than its factorization.

52143665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489831.

The product of its digits is 21600, while the sum is 32.

The square root of 52143665 is about 7221.0570555840. The cubic root of 52143665 is about 373.5945375668.

The spelling of 52143665 in words is "fifty-two million, one hundred forty-three thousand, six hundred sixty-five".