526560664520213 has 2 divisors, whose sum is σ = 526560664520214. Its totient is φ = 526560664520212.

The previous prime is 526560664520197. The next prime is 526560664520251. The reversal of 526560664520213 is 312025466065625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312788865762244 + 213771798757969 = 17685838^2 + 14620937^2 .

It is a cyclic number.

It is not a de Polignac number, because 526560664520213 - 2⁴ = 526560664520197 is a prime.

It is a super-2 number, since 2×526560664520213² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (526560664522213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263280332260106 + 263280332260107.

It is an arithmetic number, because the mean of its divisors is an integer number (263280332260107).

Almost surely, 2^{526560664520213} is an apocalyptic number.

It is an amenable number.

526560664520213 is a deficient number, since it is larger than the sum of its proper divisors (1).

526560664520213 is an equidigital number, since it uses as much as digits as its factorization.

526560664520213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552000, while the sum is 53.

The spelling of 526560664520213 in words is "five hundred twenty-six trillion, five hundred sixty billion, six hundred sixty-four million, five hundred twenty thousand, two hundred thirteen".