52006505 has 4 divisors (see below), whose sum is σ = 62407812. Its totient is φ = 41605200.

The previous prime is 52006429. The next prime is 52006529. The reversal of 52006505 is 50560025.

52006505 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 41267776 + 10738729 = 6424^2 + 3277^2 .

It is not a de Polignac number, because 52006505 - 2¹² = 52002409 is a prime.

It is a Duffinian 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, 5200646 + ... + 5200655.

It is an arithmetic number, because the mean of its divisors is an integer number (15601953).

Almost surely, 2^52006505 is an apocalyptic number.

It is an amenable number.

52006505 is a deficient number, since it is larger than the sum of its proper divisors (10401307).

52006505 is a wasteful number, since it uses less digits than its factorization.

52006505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10401306.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 52006505 is about 7211.5535774201. The cubic root of 52006505 is about 373.2666791258.

The spelling of 52006505 in words is "fifty-two million, six thousand, five hundred five".