522193472261 has 2 divisors, whose sum is σ = 522193472262. Its totient is φ = 522193472260.

The previous prime is 522193472239. The next prime is 522193472291. The reversal of 522193472261 is 162274391225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336522971236 + 185670501025 = 580106^2 + 430895^2 .

It is a cyclic number.

It is not a de Polignac number, because 522193472261 - 2⁶ = 522193472197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522193472201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261096736130 + 261096736131.

It is an arithmetic number, because the mean of its divisors is an integer number (261096736131).

Almost surely, 2^522193472261 is an apocalyptic number.

It is an amenable number.

522193472261 is a deficient number, since it is larger than the sum of its proper divisors (1).

522193472261 is an equidigital number, since it uses as much as digits as its factorization.

522193472261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The spelling of 522193472261 in words is "five hundred twenty-two billion, one hundred ninety-three million, four hundred seventy-two thousand, two hundred sixty-one".