2564321299 has 2 divisors, whose sum is σ = 2564321300. Its totient is φ = 2564321298.

The previous prime is 2564321251. The next prime is 2564321303. The reversal of 2564321299 is 9921234652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2564321299 - 2⁷ = 2564321171 is a prime.

It is not a weakly prime, because it can be changed into another prime (2564321099) 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, 1282160649 + 1282160650.

It is an arithmetic number, because the mean of its divisors is an integer number (1282160650).

Almost surely, 2^2564321299 is an apocalyptic number.

2564321299 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564321299 is an equidigital number, since it uses as much as digits as its factorization.

2564321299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 43.

The square root of 2564321299 is about 50639.1281421788. The cubic root of 2564321299 is about 1368.7500452062.

The spelling of 2564321299 in words is "two billion, five hundred sixty-four million, three hundred twenty-one thousand, two hundred ninety-nine".