2564909311 has 2 divisors, whose sum is σ = 2564909312. Its totient is φ = 2564909310.

The previous prime is 2564909299. The next prime is 2564909317. The reversal of 2564909311 is 1139094652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2564909311 - 2¹¹ = 2564907263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2564909317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282454655 + 1282454656.

It is an arithmetic number, because the mean of its divisors is an integer number (1282454656).

Almost surely, 2^2564909311 is an apocalyptic number.

2564909311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564909311 is an equidigital number, since it uses as much as digits as its factorization.

2564909311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 2564909311 is about 50644.9337150321. The cubic root of 2564909311 is about 1368.8546576744.

The spelling of 2564909311 in words is "two billion, five hundred sixty-four million, nine hundred nine thousand, three hundred eleven".