20452322325397 has 2 divisors, whose sum is σ = 20452322325398. Its totient is φ = 20452322325396.

The previous prime is 20452322325389. The next prime is 20452322325437. The reversal of 20452322325397 is 79352322325402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15031369374961 + 5420952950436 = 3877031^2 + 2328294^2 .

It is a cyclic number.

It is not a de Polignac number, because 20452322325397 - 2³ = 20452322325389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20452322325397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20452322325317) 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, 10226161162698 + 10226161162699.

It is an arithmetic number, because the mean of its divisors is an integer number (10226161162699).

Almost surely, 2^{20452322325397} is an apocalyptic number.

It is an amenable number.

20452322325397 is a deficient number, since it is larger than the sum of its proper divisors (1).

20452322325397 is an equidigital number, since it uses as much as digits as its factorization.

20452322325397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 49.

The spelling of 20452322325397 in words is "twenty trillion, four hundred fifty-two billion, three hundred twenty-two million, three hundred twenty-five thousand, three hundred ninety-seven".