20522504071 has 2 divisors, whose sum is σ = 20522504072. Its totient is φ = 20522504070.

The previous prime is 20522504059. The next prime is 20522504099. The reversal of 20522504071 is 17040522502.

It is an a-pointer prime, because the next prime (20522504099) can be obtained adding 20522504071 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20522504071 - 2⁹ = 20522503559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20522504011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10261252035 + 10261252036.

It is an arithmetic number, because the mean of its divisors is an integer number (10261252036).

Almost surely, 2^20522504071 is an apocalyptic number.

20522504071 is a deficient number, since it is larger than the sum of its proper divisors (1).

20522504071 is an equidigital number, since it uses as much as digits as its factorization.

20522504071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 28.

The spelling of 20522504071 in words is "twenty billion, five hundred twenty-two million, five hundred four thousand, seventy-one".