505055555511 has 32 divisors (see below), whose sum is σ = 726236871360. Its totient is φ = 310362845184.

The previous prime is 505055555507. The next prime is 505055555533. The reversal of 505055555511 is 115555550505.

It is not a de Polignac number, because 505055555511 - 2² = 505055555507 is a prime.

It is a super-2 number, since 2×505055555511² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505055555551) 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, 112407181 + ... + 112411673.

It is an arithmetic number, because the mean of its divisors is an integer number (22694902230).

Almost surely, 2^505055555511 is an apocalyptic number.

505055555511 is a deficient number, since it is larger than the sum of its proper divisors (221181315849).

505055555511 is a wasteful number, since it uses less digits than its factorization.

505055555511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7955.

The product of its (nonzero) digits is 390625, while the sum is 42.

The spelling of 505055555511 in words is "five hundred five billion, fifty-five million, five hundred fifty-five thousand, five hundred eleven".