505312 has 12 divisors (see below), whose sum is σ = 994896. Its totient is φ = 252640.
The previous prime is 505301. The next prime is 505313. The reversal of 505312 is 213505.
505312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (505313) 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 as a sum of consecutive naturals, namely, 7864 + ... + 7927.
It is an arithmetic number, because the mean of its divisors is an integer number (82908).
2505312 is an apocalyptic number.
It is an amenable number.
505312 is a deficient number, since it is larger than the sum of its proper divisors (489584).
505312 is a wasteful number, since it uses less digits than its factorization.
505312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15801 (or 15793 counting only the distinct ones).
The product of its (nonzero) digits is 150, while the sum is 16.
The square root of 505312 is about 710.8530087156. The cubic root of 505312 is about 79.6501388619.
Adding to 505312 its reverse (213505), we get a palindrome (718817).
The spelling of 505312 in words is "five hundred five thousand, three hundred twelve".
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