505388883505 has 8 divisors (see below), whose sum is σ = 661599993024. Its totient is φ = 367555551600.

The previous prime is 505388883497. The next prime is 505388883529.

505388883505 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505388883505 - 2³ = 505388883497 is a prime.

It is a super-2 number, since 2×505388883505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505388883505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4594444341 + ... + 4594444450.

It is an arithmetic number, because the mean of its divisors is an integer number (82699999128).

Almost surely, 2^505388883505 is an apocalyptic number.

505388883505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

505388883505 is a deficient number, since it is larger than the sum of its proper divisors (156211109519).

505388883505 is a wasteful number, since it uses less digits than its factorization.

505388883505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9188888807.

The product of its (nonzero) digits is 23040000, while the sum is 58.

The spelling of 505388883505 in words is "five hundred five billion, three hundred eighty-eight million, eight hundred eighty-three thousand, five hundred five".