500004002001 has 64 divisors (see below), whose sum is σ = 795533630976. Its totient is φ = 273427660800.

The previous prime is 500004001999. The next prime is 500004002009. The reversal of 500004002001 is 100200400005.

It is not a de Polignac number, because 500004002001 - 2¹ = 500004001999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (500004002009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9410931 + ... + 9463911.

It is an arithmetic number, because the mean of its divisors is an integer number (12430212984).

Almost surely, 2^500004002001 is an apocalyptic number.

It is an amenable number.

500004002001 is a deficient number, since it is larger than the sum of its proper divisors (295529628975).

500004002001 is a wasteful number, since it uses less digits than its factorization.

500004002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53242.

The product of its (nonzero) digits is 40, while the sum is 12.

Adding to 500004002001 its reverse (100200400005), we get a palindrome (600204402006).

The spelling of 500004002001 in words is "five hundred billion, four million, two thousand, one".