52805605 has 4 divisors (see below), whose sum is σ = 63366732. Its totient is φ = 42244480.

The previous prime is 52805573. The next prime is 52805647. The reversal of 52805605 is 50650825.

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 36012001 + 16793604 = 6001^2 + 4098^2 .

It is not a de Polignac number, because 52805605 - 2⁵ = 52805573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5280556 + ... + 5280565.

It is an arithmetic number, because the mean of its divisors is an integer number (15841683).

Almost surely, 2^52805605 is an apocalyptic number.

It is an amenable number.

52805605 is a deficient number, since it is larger than the sum of its proper divisors (10561127).

52805605 is a wasteful number, since it uses less digits than its factorization.

52805605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561126.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 52805605 is about 7266.7465209680. The cubic root of 52805605 is about 375.1687655186.

The spelling of 52805605 in words is "fifty-two million, eight hundred five thousand, six hundred five".