505885912 has 64 divisors (see below), whose sum is σ = 1115896320. Its totient is φ = 210532608.

The previous prime is 505885909. The next prime is 505885967. The reversal of 505885912 is 219588505.

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, 272973 + ... + 274819.

It is an arithmetic number, because the mean of its divisors is an integer number (17435880).

Almost surely, 2^505885912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505885912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557948160).

505885912 is an abundant number, since it is smaller than the sum of its proper divisors (610010408).

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

505885912 is a wasteful number, since it uses less digits than its factorization.

505885912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1996 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 43.

The square root of 505885912 is about 22491.9077003264. The cubic root of 505885912 is about 796.8028187282.

The spelling of 505885912 in words is "five hundred five million, eight hundred eighty-five thousand, nine hundred twelve".