5515561005 has 32 divisors (see below), whose sum is σ = 9411292800. Its totient is φ = 2748659712.

The previous prime is 5515561001. The next prime is 5515561019. The reversal of 5515561005 is 5001655155.

It is not a de Polignac number, because 5515561005 - 2² = 5515561001 is a prime.

It is a super-2 number, since 2×5515561005² = 60842826399753220050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515561001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42360 + ... + 113249.

It is an arithmetic number, because the mean of its divisors is an integer number (294102900).

Almost surely, 2^5515561005 is an apocalyptic number.

It is an amenable number.

5515561005 is a deficient number, since it is larger than the sum of its proper divisors (3895731795).

5515561005 is a wasteful number, since it uses less digits than its factorization.

5515561005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155773.

The product of its (nonzero) digits is 18750, while the sum is 33.

The square root of 5515561005 is about 74266.8230436714. The cubic root of 5515561005 is about 1766.8373203885.

The spelling of 5515561005 in words is "five billion, five hundred fifteen million, five hundred sixty-one thousand, five".