505412012 has 12 divisors (see below), whose sum is σ = 1010824080. Its totient is φ = 216605136.

The previous prime is 505411997. The next prime is 505412053. The reversal of 505412012 is 210214505.

505412012 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9025187 + ... + 9025242.

It is an arithmetic number, because the mean of its divisors is an integer number (84235340).

Almost surely, 2^505412012 is an apocalyptic number.

It is an amenable number.

505412012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

505412012 is a wasteful number, since it uses less digits than its factorization.

505412012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18050440 (or 18050438 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 505412012 is about 22481.3703318993. The cubic root of 505412012 is about 796.5539333450.

Adding to 505412012 its reverse (210214505), we get a palindrome (715626517).

The spelling of 505412012 in words is "five hundred five million, four hundred twelve thousand, twelve".