523305173482061 has 2 divisors, whose sum is σ = 523305173482062. Its totient is φ = 523305173482060.

The previous prime is 523305173481983. The next prime is 523305173482121. The reversal of 523305173482061 is 160284371503325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519425396300836 + 3879777181225 = 22790906^2 + 1969715^2 .

It is a cyclic number.

It is not a de Polignac number, because 523305173482061 - 2²² = 523305169287757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523305173082061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261652586741030 + 261652586741031.

It is an arithmetic number, because the mean of its divisors is an integer number (261652586741031).

Almost surely, 2^{523305173482061} is an apocalyptic number.

It is an amenable number.

523305173482061 is a deficient number, since it is larger than the sum of its proper divisors (1).

523305173482061 is an equidigital number, since it uses as much as digits as its factorization.

523305173482061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 523305173482061 in words is "five hundred twenty-three trillion, three hundred five billion, one hundred seventy-three million, four hundred eighty-two thousand, sixty-one".