520303286641 has 2 divisors, whose sum is σ = 520303286642. Its totient is φ = 520303286640.

The previous prime is 520303286639. The next prime is 520303286653. The reversal of 520303286641 is 146682303025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 512226490000 + 8076796641 = 715700^2 + 89871^2 .

It is a cyclic number.

It is not a de Polignac number, because 520303286641 - 2¹ = 520303286639 is a prime.

Together with 520303286639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 520303286594 and 520303286603.

It is not a weakly prime, because it can be changed into another prime (520303286341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260151643320 + 260151643321.

It is an arithmetic number, because the mean of its divisors is an integer number (260151643321).

Almost surely, 2^520303286641 is an apocalyptic number.

It is an amenable number.

520303286641 is a deficient number, since it is larger than the sum of its proper divisors (1).

520303286641 is an equidigital number, since it uses as much as digits as its factorization.

520303286641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 40.

Adding to 520303286641 its reverse (146682303025), we get a palindrome (666985589666).

The spelling of 520303286641 in words is "five hundred twenty billion, three hundred three million, two hundred eighty-six thousand, six hundred forty-one".