2052540205 has 4 divisors (see below), whose sum is σ = 2463048252. Its totient is φ = 1642032160.

The previous prime is 2052540157. The next prime is 2052540211. The reversal of 2052540205 is 5020452502.

It is a happy number.

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 1507691241 + 544848964 = 38829^2 + 23342^2 .

It is not a de Polignac number, because 2052540205 - 2¹¹ = 2052538157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2052540205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205254016 + ... + 205254025.

It is an arithmetic number, because the mean of its divisors is an integer number (615762063).

Almost surely, 2^2052540205 is an apocalyptic number.

It is an amenable number.

2052540205 is a deficient number, since it is larger than the sum of its proper divisors (410508047).

2052540205 is an equidigital number, since it uses as much as digits as its factorization.

2052540205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410508046.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 2052540205 is about 45304.9688775966. The cubic root of 2052540205 is about 1270.8585768511.

Adding to 2052540205 its reverse (5020452502), we get a palindrome (7072992707).

The spelling of 2052540205 in words is "two billion, fifty-two million, five hundred forty thousand, two hundred five".