500550000001 has 4 divisors (see below), whose sum is σ = 500593830912. Its totient is φ = 500506169092.

The previous prime is 500549999987. The next prime is 500550000007. The reversal of 500550000001 is 100000055005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100000055005 = 5 ⋅20000011001.

It is a cyclic number.

It is not a de Polignac number, because 500550000001 - 2⁵ = 500549999969 is a prime.

It is a super-2 number, since 2×500550000001² (a number of 24 digits) contains 22 as substring.

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 500550000001.

It is not an unprimeable number, because it can be changed into a prime (500550000007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21898321 + ... + 21921166.

It is an arithmetic number, because the mean of its divisors is an integer number (125148457728).

Almost surely, 2^500550000001 is an apocalyptic number.

It is an amenable number.

500550000001 is a deficient number, since it is larger than the sum of its proper divisors (43830911).

500550000001 is a wasteful number, since it uses less digits than its factorization.

500550000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43830910.

The product of its (nonzero) digits is 125, while the sum is 16.

Adding to 500550000001 its reverse (100000055005), we get a palindrome (600550055006).

The spelling of 500550000001 in words is "five hundred billion, five hundred fifty million, one", and thus it is an aban number.