550005505555 has 32 divisors (see below), whose sum is σ = 721538926848. Its totient is φ = 399153744000.

The previous prime is 550005505529. The next prime is 550005505691. The reversal of 550005505555 is 555505500055.

It is not a de Polignac number, because 550005505555 - 2¹¹ = 550005503507 is a prime.

It is a super-2 number, since 2×550005505555² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135768280 + ... + 135772330.

It is an arithmetic number, because the mean of its divisors is an integer number (22548091464).

Almost surely, 2^550005505555 is an apocalyptic number.

550005505555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

550005505555 is a deficient number, since it is larger than the sum of its proper divisors (171533421293).

550005505555 is a wasteful number, since it uses less digits than its factorization.

550005505555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8707.

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 550005505555 in words is "five hundred fifty billion, five million, five hundred five thousand, five hundred fifty-five".