320055533573 has 2 divisors, whose sum is σ = 320055533574. Its totient is φ = 320055533572.

The previous prime is 320055533537. The next prime is 320055533597. The reversal of 320055533573 is 375335550023.

Together with previous prime (320055533537) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241888879684 + 78166653889 = 491822^2 + 279583^2 .

It is a cyclic number.

It is not a de Polignac number, because 320055533573 - 2¹⁴ = 320055517189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320055533573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320055533873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160027766786 + 160027766787.

It is an arithmetic number, because the mean of its divisors is an integer number (160027766787).

Almost surely, 2^320055533573 is an apocalyptic number.

It is an amenable number.

320055533573 is a deficient number, since it is larger than the sum of its proper divisors (1).

320055533573 is an equidigital number, since it uses as much as digits as its factorization.

320055533573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 708750, while the sum is 41.

The spelling of 320055533573 in words is "three hundred twenty billion, fifty-five million, five hundred thirty-three thousand, five hundred seventy-three".