506354056609 has 2 divisors, whose sum is σ = 506354056610. Its totient is φ = 506354056608.

The previous prime is 506354056603. The next prime is 506354056639. The reversal of 506354056609 is 906650453605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389644366225 + 116709690384 = 624215^2 + 341628^2 .

It is a cyclic number.

It is not a de Polignac number, because 506354056609 - 2¹¹ = 506354054561 is a prime.

It is not a weakly prime, because it can be changed into another prime (506354056603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253177028304 + 253177028305.

It is an arithmetic number, because the mean of its divisors is an integer number (253177028305).

Almost surely, 2^506354056609 is an apocalyptic number.

It is an amenable number.

506354056609 is a deficient number, since it is larger than the sum of its proper divisors (1).

506354056609 is an equidigital number, since it uses as much as digits as its factorization.

506354056609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916000, while the sum is 49.

The spelling of 506354056609 in words is "five hundred six billion, three hundred fifty-four million, fifty-six thousand, six hundred nine".