1005000500501 has 4 divisors (see below), whose sum is σ = 1021475918604. Its totient is φ = 988525082400.

The previous prime is 1005000500467. The next prime is 1005000500527. The reversal of 1005000500501 is 1050050005001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 554525962225 + 450474538276 = 744665^2 + 671174^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005000500501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1005000500501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005000502501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8237708960 + ... + 8237709081.

It is an arithmetic number, because the mean of its divisors is an integer number (255368979651).

Almost surely, 2^{1005000500501} is an apocalyptic number.

It is an amenable number.

1005000500501 is a deficient number, since it is larger than the sum of its proper divisors (16475418103).

1005000500501 is an equidigital number, since it uses as much as digits as its factorization.

1005000500501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16475418102.

The product of its (nonzero) digits is 125, while the sum is 17.

Adding to 1005000500501 its reverse (1050050005001), we get a palindrome (2055050505502).

The spelling of 1005000500501 in words is "one trillion, five billion, five hundred thousand, five hundred one".