520297853461 has 2 divisors, whose sum is σ = 520297853462. Its totient is φ = 520297853460.

The previous prime is 520297853407. The next prime is 520297853521. The reversal of 520297853461 is 164358792025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487280783025 + 33017070436 = 698055^2 + 181706^2 .

It is a cyclic number.

It is not a de Polignac number, because 520297853461 - 2²³ = 520289464853 is a prime.

It is a super-2 number, since 2×520297853461² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520297853399 and 520297853408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520297853161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260148926730 + 260148926731.

It is an arithmetic number, because the mean of its divisors is an integer number (260148926731).

It is a 1-persistent number, because it is pandigital, but 2⋅520297853461 = 1040595706922 is not.

Almost surely, 2^520297853461 is an apocalyptic number.

It is an amenable number.

520297853461 is a deficient number, since it is larger than the sum of its proper divisors (1).

520297853461 is an equidigital number, since it uses as much as digits as its factorization.

520297853461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 520297853461 in words is "five hundred twenty billion, two hundred ninety-seven million, eight hundred fifty-three thousand, four hundred sixty-one".