500005550501001 has 12 divisors (see below), whose sum is σ = 722233696936128. Its totient is φ = 333335437979544.

The previous prime is 500005550500913. The next prime is 500005550501011. The reversal of 500005550501001 is 100105055500005.

500005550501001 is a `hidden beast` number, since 5 + 0 + 0 + 0 + 0 + 5 + 550 + 5 + 0 + 100 + 1 = 666.

It is not a de Polignac number, because 500005550501001 - 2¹³ = 500005550492809 is a prime.

It is a super-2 number, since 2×500005550501001² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (500005550501011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130987885 + ... + 134751018.

It is an arithmetic number, because the mean of its divisors is an integer number (60186141411344).

Almost surely, 2^{500005550501001} is an apocalyptic number.

It is an amenable number.

500005550501001 is a deficient number, since it is larger than the sum of its proper divisors (222228146435127).

500005550501001 is a wasteful number, since it uses less digits than its factorization.

500005550501001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265947972 (or 265947969 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The spelling of 500005550501001 in words is "five hundred trillion, five billion, five hundred fifty million, five hundred one thousand, one".