505605056055 has 32 divisors (see below), whose sum is σ = 906362293248. Its totient is φ = 238516387200.

The previous prime is 505605056041. The next prime is 505605056057. The reversal of 505605056055 is 550650506505.

It is not a de Polignac number, because 505605056055 - 2³⁸ = 230727149111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505605055998 and 505605056016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505605056057) 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, 41402991 + ... + 41415200.

It is an arithmetic number, because the mean of its divisors is an integer number (28323821664).

Almost surely, 2^505605056055 is an apocalyptic number.

505605056055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

505605056055 is a deficient number, since it is larger than the sum of its proper divisors (400757237193).

505605056055 is a wasteful number, since it uses less digits than its factorization.

505605056055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82818247.

The product of its (nonzero) digits is 562500, while the sum is 42.

The spelling of 505605056055 in words is "five hundred five billion, six hundred five million, fifty-six thousand, fifty-five".