20525220452441 has 2 divisors, whose sum is σ = 20525220452442. Its totient is φ = 20525220452440.

The previous prime is 20525220452431. The next prime is 20525220452501. The reversal of 20525220452441 is 14425402252502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15658078506841 + 4867141945600 = 3957029^2 + 2206160^2 .

It is a cyclic number.

It is not a de Polignac number, because 20525220452441 - 2²⁶ = 20525153343577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20525220452395 and 20525220452404.

It is not a weakly prime, because it can be changed into another prime (20525220452431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10262610226220 + 10262610226221.

It is an arithmetic number, because the mean of its divisors is an integer number (10262610226221).

Almost surely, 2^{20525220452441} is an apocalyptic number.

It is an amenable number.

20525220452441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20525220452441 is an equidigital number, since it uses as much as digits as its factorization.

20525220452441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256000, while the sum is 38.

The spelling of 20525220452441 in words is "twenty trillion, five hundred twenty-five billion, two hundred twenty million, four hundred fifty-two thousand, four hundred forty-one".