52047665 has 4 divisors (see below), whose sum is σ = 62457204. Its totient is φ = 41638128.

The previous prime is 52047647. The next prime is 52047679. The reversal of 52047665 is 56674025.

52047665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35628961 + 16418704 = 5969^2 + 4052^2 .

It is a cyclic number.

It is not a de Polignac number, because 52047665 - 2⁶ = 52047601 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 5204762 + ... + 5204771.

It is an arithmetic number, because the mean of its divisors is an integer number (15614301).

Almost surely, 2^52047665 is an apocalyptic number.

It is an amenable number.

52047665 is a deficient number, since it is larger than the sum of its proper divisors (10409539).

52047665 is a wasteful number, since it uses less digits than its factorization.

52047665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10409538.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 52047665 is about 7214.4067670183. The cubic root of 52047665 is about 373.3651258179.

The spelling of 52047665 in words is "fifty-two million, forty-seven thousand, six hundred sixty-five".