30520222505273 has 2 divisors, whose sum is σ = 30520222505274. Its totient is φ = 30520222505272.

The previous prime is 30520222505239. The next prime is 30520222505323. The reversal of 30520222505273 is 37250522202503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20441864327824 + 10078358177449 = 4521268^2 + 3174643^2 .

It is a cyclic number.

It is not a de Polignac number, because 30520222505273 - 2¹⁰ = 30520222504249 is a prime.

It is not a weakly prime, because it can be changed into another prime (30520222507273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15260111252636 + 15260111252637.

It is an arithmetic number, because the mean of its divisors is an integer number (15260111252637).

Almost surely, 2^{30520222505273} is an apocalyptic number.

It is an amenable number.

30520222505273 is a deficient number, since it is larger than the sum of its proper divisors (1).

30520222505273 is an equidigital number, since it uses as much as digits as its factorization.

30520222505273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 38.

Adding to 30520222505273 its reverse (37250522202503), we get a palindrome (67770744707776).

The spelling of 30520222505273 in words is "thirty trillion, five hundred twenty billion, two hundred twenty-two million, five hundred five thousand, two hundred seventy-three".