520000000001 has 2 divisors, whose sum is σ = 520000000002. Its totient is φ = 520000000000.

The previous prime is 519999999997. The next prime is 520000000021. The reversal of 520000000001 is 100000000025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339217715776 + 180782284225 = 582424^2 + 425185^2 .

It is a cyclic number.

It is not a de Polignac number, because 520000000001 - 2² = 519999999997 is a prime.

It is not a weakly prime, because it can be changed into another prime (520000000021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260000000000 + 260000000001.

It is an arithmetic number, because the mean of its divisors is an integer number (260000000001).

Almost surely, 2^520000000001 is an apocalyptic number.

It is an amenable number.

520000000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

520000000001 is an equidigital number, since it uses as much as digits as its factorization.

520000000001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 8.

Adding to 520000000001 its reverse (100000000025), we get a palindrome (620000000026).

The spelling of 520000000001 in words is "five hundred twenty billion, one", and thus it is an aban number.