2525778808291 has 2 divisors, whose sum is σ = 2525778808292. Its totient is φ = 2525778808290.

The previous prime is 2525778808283. The next prime is 2525778808309. The reversal of 2525778808291 is 1928088775252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2525778808291 - 2³ = 2525778808283 is a prime.

It is not a weakly prime, because it can be changed into another prime (2525778800291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262889404145 + 1262889404146.

It is an arithmetic number, because the mean of its divisors is an integer number (1262889404146).

Almost surely, 2^{2525778808291} is an apocalyptic number.

2525778808291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525778808291 is an equidigital number, since it uses as much as digits as its factorization.

2525778808291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45158400, while the sum is 64.

The spelling of 2525778808291 in words is "two trillion, five hundred twenty-five billion, seven hundred seventy-eight million, eight hundred eight thousand, two hundred ninety-one".