52003665 has 48 divisors (see below), whose sum is σ = 108451200. Its totient is φ = 22519296.

The previous prime is 52003639. The next prime is 52003669. The reversal of 52003665 is 56630025.

It is not a de Polignac number, because 52003665 - 2¹⁰ = 52002641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52003669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1641 + ... + 10329.

It is an arithmetic number, because the mean of its divisors is an integer number (2259400).

Almost surely, 2^52003665 is an apocalyptic number.

It is an amenable number.

52003665 is an abundant number, since it is smaller than the sum of its proper divisors (56447535).

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

52003665 is a wasteful number, since it uses less digits than its factorization.

52003665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8726 (or 8723 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 52003665 is about 7211.3566684779. The cubic root of 52003665 is about 373.2598844843.

The spelling of 52003665 in words is "fifty-two million, three thousand, six hundred sixty-five".