550221234005 has 4 divisors (see below), whose sum is σ = 660265480812. Its totient is φ = 440176987200.

The previous prime is 550221233987. The next prime is 550221234007. The reversal of 550221234005 is 500432122055.

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 268283597521 + 281937636484 = 517961^2 + 530978^2 .

It is not a de Polignac number, because 550221234005 - 2²⁶ = 550154125141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550221234007) 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, 55022123396 + ... + 55022123405.

It is an arithmetic number, because the mean of its divisors is an integer number (165066370203).

Almost surely, 2^550221234005 is an apocalyptic number.

It is an amenable number.

550221234005 is a deficient number, since it is larger than the sum of its proper divisors (110044246807).

550221234005 is a wasteful number, since it uses less digits than its factorization.

550221234005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110044246806.

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 550221234005 in words is "five hundred fifty billion, two hundred twenty-one million, two hundred thirty-four thousand, five".