5005555221 has 16 divisors (see below), whose sum is σ = 6790118400. Its totient is φ = 3279063408.

The previous prime is 5005555207. The next prime is 5005555241. The reversal of 5005555221 is 1225555005.

It is not a de Polignac number, because 5005555221 - 2⁹ = 5005554709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5005555241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547530 + ... + 556596.

It is an arithmetic number, because the mean of its divisors is an integer number (424382400).

Almost surely, 2^5005555221 is an apocalyptic number.

It is an amenable number.

5005555221 is a deficient number, since it is larger than the sum of its proper divisors (1784563179).

5005555221 is a wasteful number, since it uses less digits than its factorization.

5005555221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12248.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 5005555221 is about 70749.9485582852. The cubic root of 5005555221 is about 1710.6089985709.

The spelling of 5005555221 in words is "five billion, five million, five hundred fifty-five thousand, two hundred twenty-one".