505505550055 has 16 divisors (see below), whose sum is σ = 662111138304. Its totient is φ = 367441278880.

The previous prime is 505505550041. The next prime is 505505550097. The reversal of 505505550055 is 550055505505.

It is not a de Polignac number, because 505505550055 - 2⁵ = 505505550023 is a prime.

It is a super-2 number, since 2×505505550055² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 2386507 + ... + 2589676.

It is an arithmetic number, because the mean of its divisors is an integer number (41381946144).

Almost surely, 2^505505550055 is an apocalyptic number.

505505550055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

505505550055 is a deficient number, since it is larger than the sum of its proper divisors (156605588249).

505505550055 is a wasteful number, since it uses less digits than its factorization.

505505550055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4978046.

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

The spelling of 505505550055 in words is "five hundred five billion, five hundred five million, five hundred fifty thousand, fifty-five".