505500555505 has 16 divisors (see below), whose sum is σ = 696574929600. Its totient is φ = 348287463360.

The previous prime is 505500555493. The next prime is 505500555551. The reversal of 505500555505 is 505555005505.

It is not a de Polignac number, because 505500555505 - 2¹⁹ = 505500031217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241865250 + ... + 241867339.

It is an arithmetic number, because the mean of its divisors is an integer number (43535933100).

Almost surely, 2^505500555505 is an apocalyptic number.

505500555505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

505500555505 is a deficient number, since it is larger than the sum of its proper divisors (191074374095).

505500555505 is a wasteful number, since it uses less digits than its factorization.

505500555505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483732624.

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

The spelling of 505500555505 in words is "five hundred five billion, five hundred million, five hundred fifty-five thousand, five hundred five".