505223406673 has 2 divisors, whose sum is σ = 505223406674. Its totient is φ = 505223406672.

The previous prime is 505223406641. The next prime is 505223406703. The reversal of 505223406673 is 376604322505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497826202624 + 7397204049 = 705568^2 + 86007^2 .

It is a cyclic number.

It is not a de Polignac number, because 505223406673 - 2⁵ = 505223406641 is a prime.

It is not a weakly prime, because it can be changed into another prime (505223409673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252611703336 + 252611703337.

It is an arithmetic number, because the mean of its divisors is an integer number (252611703337).

Almost surely, 2^505223406673 is an apocalyptic number.

It is an amenable number.

505223406673 is a deficient number, since it is larger than the sum of its proper divisors (1).

505223406673 is an equidigital number, since it uses as much as digits as its factorization.

505223406673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 43.

The spelling of 505223406673 in words is "five hundred five billion, two hundred twenty-three million, four hundred six thousand, six hundred seventy-three".