5206545212213 has 2 divisors, whose sum is σ = 5206545212214. Its totient is φ = 5206545212212.

The previous prime is 5206545212177. The next prime is 5206545212227. The reversal of 5206545212213 is 3122125456025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5042032229809 + 164512982404 = 2245447^2 + 405602^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5206545212213 is a prime.

It is a super-2 number, since 2×5206545212213² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5206545212273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2603272606106 + 2603272606107.

It is an arithmetic number, because the mean of its divisors is an integer number (2603272606107).

Almost surely, 2^{5206545212213} is an apocalyptic number.

It is an amenable number.

5206545212213 is a deficient number, since it is larger than the sum of its proper divisors (1).

5206545212213 is an equidigital number, since it uses as much as digits as its factorization.

5206545212213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 5206545212213 in words is "five trillion, two hundred six billion, five hundred forty-five million, two hundred twelve thousand, two hundred thirteen".