506700171997 has 2 divisors, whose sum is σ = 506700171998. Its totient is φ = 506700171996.

The previous prime is 506700171983. The next prime is 506700172001. The reversal of 506700171997 is 799171007605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 467519532516 + 39180639481 = 683754^2 + 197941^2 .

It is a cyclic number.

It is not a de Polignac number, because 506700171997 - 2³⁵ = 472340433629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506700171697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253350085998 + 253350085999.

It is an arithmetic number, because the mean of its divisors is an integer number (253350085999).

Almost surely, 2^506700171997 is an apocalyptic number.

It is an amenable number.

506700171997 is a deficient number, since it is larger than the sum of its proper divisors (1).

506700171997 is an equidigital number, since it uses as much as digits as its factorization.

506700171997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 833490, while the sum is 52.

The spelling of 506700171997 in words is "five hundred six billion, seven hundred million, one hundred seventy-one thousand, nine hundred ninety-seven".