2560201409 has 2 divisors, whose sum is σ = 2560201410. Its totient is φ = 2560201408.

The previous prime is 2560201393. The next prime is 2560201439. The reversal of 2560201409 is 9041020652.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1933800625 + 626400784 = 43975^2 + 25028^2 .

It is a cyclic number.

It is not a de Polignac number, because 2560201409 - 2⁴ = 2560201393 is a prime.

It is not a weakly prime, because it can be changed into another prime (2560201439) 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 as a sum of consecutive naturals, namely, 1280100704 + 1280100705.

It is an arithmetic number, because the mean of its divisors is an integer number (1280100705).

Almost surely, 2^2560201409 is an apocalyptic number.

It is an amenable number.

2560201409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2560201409 is an equidigital number, since it uses as much as digits as its factorization.

2560201409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2560201409 is about 50598.4328709892. The cubic root of 2560201409 is about 1368.0166318740.

The spelling of 2560201409 in words is "two billion, five hundred sixty million, two hundred one thousand, four hundred nine".