506051085569 has 2 divisors, whose sum is σ = 506051085570. Its totient is φ = 506051085568.

The previous prime is 506051085563. The next prime is 506051085647. The reversal of 506051085569 is 965580150605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392608762225 + 113442323344 = 626585^2 + 336812^2 .

It is a cyclic number.

It is not a de Polignac number, because 506051085569 - 2³² = 501756118273 is a prime.

It is a super-2 number, since 2×506051085569² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (506051085563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253025542784 + 253025542785.

It is an arithmetic number, because the mean of its divisors is an integer number (253025542785).

Almost surely, 2^506051085569 is an apocalyptic number.

It is an amenable number.

506051085569 is a deficient number, since it is larger than the sum of its proper divisors (1).

506051085569 is an equidigital number, since it uses as much as digits as its factorization.

506051085569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620000, while the sum is 50.

The spelling of 506051085569 in words is "five hundred six billion, fifty-one million, eighty-five thousand, five hundred sixty-nine".