521052525713 has 2 divisors, whose sum is σ = 521052525714. Its totient is φ = 521052525712.

The previous prime is 521052525701. The next prime is 521052525739. The reversal of 521052525713 is 317525250125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 520673366929 + 379158784 = 721577^2 + 19472^2 .

It is a cyclic number.

It is not a de Polignac number, because 521052525713 - 2⁶ = 521052525649 is a prime.

It is not a weakly prime, because it can be changed into another prime (521052525313) 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, 260526262856 + 260526262857.

It is an arithmetic number, because the mean of its divisors is an integer number (260526262857).

Almost surely, 2^521052525713 is an apocalyptic number.

It is an amenable number.

521052525713 is a deficient number, since it is larger than the sum of its proper divisors (1).

521052525713 is an equidigital number, since it uses as much as digits as its factorization.

521052525713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105000, while the sum is 38.

Adding to 521052525713 its reverse (317525250125), we get a palindrome (838577775838).

The spelling of 521052525713 in words is "five hundred twenty-one billion, fifty-two million, five hundred twenty-five thousand, seven hundred thirteen".