505358505 has 12 divisors (see below), whose sum is σ = 875954820. Its totient is φ = 269524512.

The previous prime is 505358501. The next prime is 505358519. The reversal of 505358505 is 505853505.

505358505 is a `hidden beast` number, since 50 + 53 + 58 + 505 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 303491241 + 201867264 = 17421^2 + 14208^2 .

It is not a de Polignac number, because 505358505 - 2² = 505358501 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 505358505.

It is not an unprimeable number, because it can be changed into a prime (505358501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5615050 + ... + 5615139.

It is an arithmetic number, because the mean of its divisors is an integer number (72996235).

Almost surely, 2^505358505 is an apocalyptic number.

It is an amenable number.

505358505 is a deficient number, since it is larger than the sum of its proper divisors (370596315).

505358505 is a wasteful number, since it uses less digits than its factorization.

505358505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11230200 (or 11230197 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The square root of 505358505 is about 22480.1802706295. The cubic root of 505358505 is about 796.5258224741.

The spelling of 505358505 in words is "five hundred five million, three hundred fifty-eight thousand, five hundred five".