520613892157061 has 2 divisors, whose sum is σ = 520613892157062. Its totient is φ = 520613892157060.

The previous prime is 520613892157049. The next prime is 520613892157133. The reversal of 520613892157061 is 160751298316025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262970623544161 + 257643268612900 = 16216369^2 + 16051270^2 .

It is a cyclic number.

It is not a de Polignac number, because 520613892157061 - 2¹⁸ = 520613891894917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520613892156988 and 520613892157006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520613892127061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260306946078530 + 260306946078531.

It is an arithmetic number, because the mean of its divisors is an integer number (260306946078531).

Almost surely, 2^{520613892157061} is an apocalyptic number.

It is an amenable number.

520613892157061 is a deficient number, since it is larger than the sum of its proper divisors (1).

520613892157061 is an equidigital number, since it uses as much as digits as its factorization.

520613892157061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 520613892157061 in words is "five hundred twenty trillion, six hundred thirteen billion, eight hundred ninety-two million, one hundred fifty-seven thousand, sixty-one".