900005555005 has 4 divisors (see below), whose sum is σ = 1080006666012. Its totient is φ = 720004444000.

The previous prime is 900005555003. The next prime is 900005555027. The reversal of 900005555005 is 500555500009.

900005555005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 153960494884 + 746045060121 = 392378^2 + 863739^2 .

It is not a de Polignac number, because 900005555005 - 2¹ = 900005555003 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 (900005555003) 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, 90000555496 + ... + 90000555505.

It is an arithmetic number, because the mean of its divisors is an integer number (270001666503).

Almost surely, 2^900005555005 is an apocalyptic number.

It is an amenable number.

900005555005 is a deficient number, since it is larger than the sum of its proper divisors (180001111007).

900005555005 is a wasteful number, since it uses less digits than its factorization.

900005555005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180001111006.

The product of its (nonzero) digits is 28125, while the sum is 34.

The spelling of 900005555005 in words is "nine hundred billion, five million, five hundred fifty-five thousand, five".