2573567779 has 2 divisors, whose sum is σ = 2573567780. Its totient is φ = 2573567778.

The previous prime is 2573567747. The next prime is 2573567791. The reversal of 2573567779 is 9777653752.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2573567779 - 2⁵ = 2573567747 is a prime.

It is a super-2 number, since 2×2573567779² = 13246502226213985682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2573567179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1286783889 + 1286783890.

It is an arithmetic number, because the mean of its divisors is an integer number (1286783890).

Almost surely, 2^2573567779 is an apocalyptic number.

2573567779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2573567779 is an equidigital number, since it uses as much as digits as its factorization.

2573567779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19448100, while the sum is 58.

The square root of 2573567779 is about 50730.3437697794. The cubic root of 2573567779 is about 1370.3932270269.

The spelling of 2573567779 in words is "two billion, five hundred seventy-three million, five hundred sixty-seven thousand, seven hundred seventy-nine".