52001666 has 8 divisors (see below), whose sum is σ = 81393984. Its totient is φ = 24870340.

The previous prime is 52001659. The next prime is 52001681. The reversal of 52001666 is 66610025.

52001666 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 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 3 ways as a sum of consecutive naturals, for example, 565190 + ... + 565281.

It is an arithmetic number, because the mean of its divisors is an integer number (10174248).

Almost surely, 2^52001666 is an apocalyptic number.

52001666 is a deficient number, since it is larger than the sum of its proper divisors (29392318).

52001666 is a wasteful number, since it uses less digits than its factorization.

52001666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130496.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 52001666 is about 7211.2180663186. The cubic root of 52001666 is about 373.2551017697.

The spelling of 52001666 in words is "fifty-two million, one thousand, six hundred sixty-six".