505880056 has 32 divisors (see below), whose sum is σ = 1035878400. Its totient is φ = 229695840.

The previous prime is 505880051. The next prime is 505880087. The reversal of 505880056 is 650088505.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 505879997 and 505880024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505880051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96265 + ... + 101383.

It is an arithmetic number, because the mean of its divisors is an integer number (32371200).

Almost surely, 2^505880056 is an apocalyptic number.

It is an amenable number.

505880056 is an abundant number, since it is smaller than the sum of its proper divisors (529998344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505880056 is a wasteful number, since it uses less digits than its factorization.

505880056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6259 (or 6255 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 505880056 is about 22491.7775197960. Note that the first 3 decimals coincide. The cubic root of 505880056 is about 796.7997441909.

The spelling of 505880056 in words is "five hundred five million, eight hundred eighty thousand, fifty-six".