520361423273 has 2 divisors, whose sum is σ = 520361423274. Its totient is φ = 520361423272.

The previous prime is 520361423249. The next prime is 520361423299. The reversal of 520361423273 is 372324163025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401940784144 + 118420639129 = 633988^2 + 344123^2 .

It is a cyclic number.

It is not a de Polignac number, because 520361423273 - 2²⁶ = 520294314409 is a prime.

It is not a weakly prime, because it can be changed into another prime (520361453273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260180711636 + 260180711637.

It is an arithmetic number, because the mean of its divisors is an integer number (260180711637).

Almost surely, 2^520361423273 is an apocalyptic number.

It is an amenable number.

520361423273 is a deficient number, since it is larger than the sum of its proper divisors (1).

520361423273 is an equidigital number, since it uses as much as digits as its factorization.

520361423273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 38.

Adding to 520361423273 its reverse (372324163025), we get a palindrome (892685586298).

The spelling of 520361423273 in words is "five hundred twenty billion, three hundred sixty-one million, four hundred twenty-three thousand, two hundred seventy-three".