500510001001 has 2 divisors, whose sum is σ = 500510001002. Its totient is φ = 500510001000.

The previous prime is 500510000987. The next prime is 500510001029. The reversal of 500510001001 is 100100015005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474362787600 + 26147213401 = 688740^2 + 161701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500510001001 is a prime.

It is a super-2 number, since 2×500510001001² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (500510601001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250255000500 + 250255000501.

It is an arithmetic number, because the mean of its divisors is an integer number (250255000501).

Almost surely, 2^500510001001 is an apocalyptic number.

It is an amenable number.

500510001001 is a deficient number, since it is larger than the sum of its proper divisors (1).

500510001001 is an equidigital number, since it uses as much as digits as its factorization.

500510001001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25, while the sum is 13.

Adding to 500510001001 its reverse (100100015005), we get a palindrome (600610016006).

The spelling of 500510001001 in words is "five hundred billion, five hundred ten million, one thousand, one".