5206021343513 has 8 divisors (see below), whose sum is σ = 5268216349032. Its totient is φ = 5144000311296.

The previous prime is 5206021343447. The next prime is 5206021343521. The reversal of 5206021343513 is 3153431206025.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 568316961424 + 4637704382089 = 753868^2 + 2153533^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5206021343513 - 2⁴² = 807974832409 is a prime.

It is a super-2 number, since 2×5206021343513² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5206021343543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43433120 + ... + 43552817.

It is an arithmetic number, because the mean of its divisors is an integer number (658527043629).

Almost surely, 2^{5206021343513} is an apocalyptic number.

It is an amenable number.

5206021343513 is a deficient number, since it is larger than the sum of its proper divisors (62195005519).

5206021343513 is an equidigital number, since it uses as much as digits as its factorization.

5206021343513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86986651.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 5206021343513 its reverse (3153431206025), we get a palindrome (8359452549538).

The spelling of 5206021343513 in words is "five trillion, two hundred six billion, twenty-one million, three hundred forty-three thousand, five hundred thirteen".