4520221305673 has 2 divisors, whose sum is σ = 4520221305674. Its totient is φ = 4520221305672.

The previous prime is 4520221305667. The next prime is 4520221305701. The reversal of 4520221305673 is 3765031220254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4367631852544 + 152589453129 = 2089888^2 + 390627^2 .

It is a cyclic number.

It is not a de Polignac number, because 4520221305673 - 2²⁹ = 4519684434761 is a prime.

It is not a weakly prime, because it can be changed into another prime (4520221305653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260110652836 + 2260110652837.

It is an arithmetic number, because the mean of its divisors is an integer number (2260110652837).

Almost surely, 2^{4520221305673} is an apocalyptic number.

It is an amenable number.

4520221305673 is a deficient number, since it is larger than the sum of its proper divisors (1).

4520221305673 is an equidigital number, since it uses as much as digits as its factorization.

4520221305673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 4520221305673 in words is "four trillion, five hundred twenty billion, two hundred twenty-one million, three hundred five thousand, six hundred seventy-three".