505312205 has 16 divisors (see below), whose sum is σ = 616023360. Its totient is φ = 397842048.

The previous prime is 505312189. The next prime is 505312243. The reversal of 505312205 is 502213505.

It is a cyclic number.

It is not a de Polignac number, because 505312205 - 2⁴ = 505312189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204266 + ... + 206724.

It is an arithmetic number, because the mean of its divisors is an integer number (38501460).

Almost surely, 2^505312205 is an apocalyptic number.

It is an amenable number.

505312205 is a deficient number, since it is larger than the sum of its proper divisors (110711155).

505312205 is a wasteful number, since it uses less digits than its factorization.

505312205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 505312205 is about 22479.1504510291. The cubic root of 505312205 is about 796.5014963297.

The spelling of 505312205 in words is "five hundred five million, three hundred twelve thousand, two hundred five".