501006006001 has 4 divisors (see below), whose sum is σ = 501019906212. Its totient is φ = 500992105792.

The previous prime is 501006005989. The next prime is 501006006019. The reversal of 501006006001 is 100600600105.

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 98314229601 + 402691776400 = 313551^2 + 634580^2 .

It is a cyclic number.

It is not a de Polignac number, because 501006006001 - 2²⁵ = 500972451569 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 501006006001.

It is not an unprimeable number, because it can be changed into a prime (501006006101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6895900 + ... + 6968173.

It is an arithmetic number, because the mean of its divisors is an integer number (125254976553).

Almost surely, 2^501006006001 is an apocalyptic number.

It is an amenable number.

501006006001 is a deficient number, since it is larger than the sum of its proper divisors (13900211).

501006006001 is a wasteful number, since it uses less digits than its factorization.

501006006001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13900210.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 501006006001 its reverse (100600600105), we get a palindrome (601606606106).

The spelling of 501006006001 in words is "five hundred one billion, six million, six thousand, one".