505550212 has 12 divisors (see below), whose sum is σ = 923178816. Its totient is φ = 241784840.

The previous prime is 505550209. The next prime is 505550219. The reversal of 505550212 is 212055505.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (505550219) 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, 2747464 + ... + 2747647.

It is an arithmetic number, because the mean of its divisors is an integer number (76931568).

Almost surely, 2^505550212 is an apocalyptic number.

It is an amenable number.

505550212 is a deficient number, since it is larger than the sum of its proper divisors (417628604).

505550212 is a wasteful number, since it uses less digits than its factorization.

505550212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495138 (or 5495136 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 505550212 is about 22484.4437778656. The cubic root of 505550212 is about 796.6265300375.

The spelling of 505550212 in words is "five hundred five million, five hundred fifty thousand, two hundred twelve".