550000500012 has 18 divisors (see below), whose sum is σ = 1390279041788. Its totient is φ = 183333499992.

The previous prime is 550000499989. The next prime is 550000500017. The reversal of 550000500012 is 210005000055.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (550000500017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7638895798 + ... + 7638895869.

Almost surely, 2^550000500012 is an apocalyptic number.

It is an amenable number.

550000500012 is an abundant number, since it is smaller than the sum of its proper divisors (840278541776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550000500012 is a wasteful number, since it uses less digits than its factorization.

550000500012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15277791677 (or 15277791672 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

Adding to 550000500012 its reverse (210005000055), we get a palindrome (760005500067).

The spelling of 550000500012 in words is "five hundred fifty billion, five hundred thousand, twelve".