520135272423577 has 2 divisors, whose sum is σ = 520135272423578. Its totient is φ = 520135272423576.

The previous prime is 520135272423527. The next prime is 520135272423647. The reversal of 520135272423577 is 775324272531025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306328264999696 + 213807007423881 = 17502236^2 + 14622141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520135272423577 is a prime.

It is not a weakly prime, because it can be changed into another prime (520135272423527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260067636211788 + 260067636211789.

It is an arithmetic number, because the mean of its divisors is an integer number (260067636211789).

Almost surely, 2^{520135272423577} is an apocalyptic number.

It is an amenable number.

520135272423577 is a deficient number, since it is larger than the sum of its proper divisors (1).

520135272423577 is an equidigital number, since it uses as much as digits as its factorization.

520135272423577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696000, while the sum is 55.

The spelling of 520135272423577 in words is "five hundred twenty trillion, one hundred thirty-five billion, two hundred seventy-two million, four hundred twenty-three thousand, five hundred seventy-seven".