52013765 has 4 divisors (see below), whose sum is σ = 62416524. Its totient is φ = 41611008.

The previous prime is 52013747. The next prime is 52013771. The reversal of 52013765 is 56731025.

52013765 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 6235009 + 45778756 = 2497^2 + 6766^2 .

It is a cyclic number.

It is not a de Polignac number, because 52013765 - 2⁶ = 52013701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 5201372 + ... + 5201381.

It is an arithmetic number, because the mean of its divisors is an integer number (15604131).

Almost surely, 2^52013765 is an apocalyptic number.

It is an amenable number.

52013765 is a deficient number, since it is larger than the sum of its proper divisors (10402759).

52013765 is a wasteful number, since it uses less digits than its factorization.

52013765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10402758.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 52013765 is about 7212.0569187992. The cubic root of 52013765 is about 373.2840474018.

The spelling of 52013765 in words is "fifty-two million, thirteen thousand, seven hundred sixty-five".