506427110063221 has 2 divisors, whose sum is σ = 506427110063222. Its totient is φ = 506427110063220.

The previous prime is 506427110063191. The next prime is 506427110063341. The reversal of 506427110063221 is 122360011724605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 449950216720900 + 56476893342321 = 21212030^2 + 7515111^2 .

It is a cyclic number.

It is not a de Polignac number, because 506427110063221 - 2⁷ = 506427110063093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506427110073221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253213555031610 + 253213555031611.

It is an arithmetic number, because the mean of its divisors is an integer number (253213555031611).

Almost surely, 2^{506427110063221} is an apocalyptic number.

It is an amenable number.

506427110063221 is a deficient number, since it is larger than the sum of its proper divisors (1).

506427110063221 is an equidigital number, since it uses as much as digits as its factorization.

506427110063221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

Adding to 506427110063221 its reverse (122360011724605), we get a palindrome (628787121787826).

The spelling of 506427110063221 in words is "five hundred six trillion, four hundred twenty-seven billion, one hundred ten million, sixty-three thousand, two hundred twenty-one".