505436212 has 12 divisors (see below), whose sum is σ = 887305860. Its totient is φ = 251920256.

The previous prime is 505436209. The next prime is 505436213. The reversal of 505436212 is 212634505.

It can be written as a sum of positive squares in 2 ways, for example, as 260951716 + 244484496 = 16154^2 + 15636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505436213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198037 + ... + 200572.

It is an arithmetic number, because the mean of its divisors is an integer number (73942155).

Almost surely, 2^505436212 is an apocalyptic number.

It is an amenable number.

505436212 is a deficient number, since it is larger than the sum of its proper divisors (381869648).

505436212 is a wasteful number, since it uses less digits than its factorization.

505436212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398930 (or 398928 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 505436212 is about 22481.9085488755. The cubic root of 505436212 is about 796.5666466014.

The spelling of 505436212 in words is "five hundred five million, four hundred thirty-six thousand, two hundred twelve".