2564040205 has 8 divisors (see below), whose sum is σ = 3077167104. Its totient is φ = 2051019600.

The previous prime is 2564040203. The next prime is 2564040217. The reversal of 2564040205 is 5020404652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2564040205 - 2¹ = 2564040203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564040203) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 43120 + ... + 83590.

It is an arithmetic number, because the mean of its divisors is an integer number (384645888).

Almost surely, 2^2564040205 is an apocalyptic number.

It is an amenable number.

2564040205 is a deficient number, since it is larger than the sum of its proper divisors (513126899).

2564040205 is a wasteful number, since it uses less digits than its factorization.

2564040205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53147.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2564040205 is about 50636.3526036384. The cubic root of 2564040205 is about 1368.7000304798.

Adding to 2564040205 its reverse (5020404652), we get a palindrome (7584444857).

The spelling of 2564040205 in words is "two billion, five hundred sixty-four million, forty thousand, two hundred five".