2564542367 has 2 divisors, whose sum is σ = 2564542368. Its totient is φ = 2564542366.

The previous prime is 2564542349. The next prime is 2564542411. The reversal of 2564542367 is 7632454652.

It is an a-pointer prime, because the next prime (2564542411) can be obtained adding 2564542367 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2564542367 - 2⁶ = 2564542303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2564542567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282271183 + 1282271184.

It is an arithmetic number, because the mean of its divisors is an integer number (1282271184).

Almost surely, 2^2564542367 is an apocalyptic number.

2564542367 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564542367 is an equidigital number, since it uses as much as digits as its factorization.

2564542367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 44.

The square root of 2564542367 is about 50641.3108736336. The cubic root of 2564542367 is about 1368.7893770091.

The spelling of 2564542367 in words is "two billion, five hundred sixty-four million, five hundred forty-two thousand, three hundred sixty-seven".