52639205 has 16 divisors (see below), whose sum is σ = 66253680. Its totient is φ = 40094208.

The previous prime is 52639189. The next prime is 52639211. The reversal of 52639205 is 50293625.

It can be written as a sum of positive squares in 8 ways, for example, as 134689 + 52504516 = 367^2 + 7246^2 .

It is a cyclic number.

It is not a de Polignac number, because 52639205 - 2⁴ = 52639189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8099 + ... + 13071.

It is an arithmetic number, because the mean of its divisors is an integer number (4140855).

Almost surely, 2^52639205 is an apocalyptic number.

It is an amenable number.

52639205 is a deficient number, since it is larger than the sum of its proper divisors (13614475).

52639205 is a wasteful number, since it uses less digits than its factorization.

52639205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5080.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 52639205 is about 7255.2880714690. The cubic root of 52639205 is about 374.7742760089.

The spelling of 52639205 in words is "fifty-two million, six hundred thirty-nine thousand, two hundred five".