505500550555 has 32 divisors (see below), whose sum is σ = 814456839168. Its totient is φ = 290877436800.

The previous prime is 505500550553. The next prime is 505500550559. The reversal of 505500550555 is 555055005505.

It is not a de Polignac number, because 505500550555 - 2¹ = 505500550553 is a prime.

It is a super-2 number, since 2×505500550555² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505500550553) 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, 50494551 + ... + 50504560.

It is an arithmetic number, because the mean of its divisors is an integer number (25451776224).

Almost surely, 2^505500550555 is an apocalyptic number.

505500550555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

505500550555 is a deficient number, since it is larger than the sum of its proper divisors (308956288613).

505500550555 is a wasteful number, since it uses less digits than its factorization.

505500550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100999147.

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

The spelling of 505500550555 in words is "five hundred five billion, five hundred million, five hundred fifty thousand, five hundred fifty-five".