20525795922871 has 2 divisors, whose sum is σ = 20525795922872. Its totient is φ = 20525795922870.

The previous prime is 20525795922857. The next prime is 20525795922911. The reversal of 20525795922871 is 17822959752502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20525795922871 - 2²⁵ = 20525762368439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20525795922271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10262897961435 + 10262897961436.

It is an arithmetic number, because the mean of its divisors is an integer number (10262897961436).

Almost surely, 2^{20525795922871} is an apocalyptic number.

20525795922871 is a deficient number, since it is larger than the sum of its proper divisors (1).

20525795922871 is an equidigital number, since it uses as much as digits as its factorization.

20525795922871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504000, while the sum is 64.

The spelling of 20525795922871 in words is "twenty trillion, five hundred twenty-five billion, seven hundred ninety-five million, nine hundred twenty-two thousand, eight hundred seventy-one".