505005012 has 18 divisors (see below), whose sum is σ = 1276540538. Its totient is φ = 168334992.

The previous prime is 505005001. The next prime is 505005019. The reversal of 505005012 is 210500505.

It can be written as a sum of positive squares in only one way, i.e., 286083396 + 218921616 = 16914^2 + 14796^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505005019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7013923 + ... + 7013994.

Almost surely, 2^505005012 is an apocalyptic number.

It is an amenable number.

505005012 is an abundant number, since it is smaller than the sum of its proper divisors (771535526).

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

505005012 is a wasteful number, since it uses less digits than its factorization.

505005012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14027927 (or 14027922 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 505005012 is about 22472.3165695039. The cubic root of 505005012 is about 796.3400586541.

Adding to 505005012 its reverse (210500505), we get a palindrome (715505517).

The spelling of 505005012 in words is "five hundred five million, five thousand, twelve".