505105473 has 4 divisors (see below), whose sum is σ = 673473968. Its totient is φ = 336736980.

The previous prime is 505105457. The next prime is 505105483. The reversal of 505105473 is 374501505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 505105473 - 2⁴ = 505105457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 505105473.

It is not an unprimeable number, because it can be changed into a prime (505105453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84184243 + ... + 84184248.

It is an arithmetic number, because the mean of its divisors is an integer number (168368492).

Almost surely, 2^505105473 is an apocalyptic number.

It is an amenable number.

505105473 is a deficient number, since it is larger than the sum of its proper divisors (168368495).

505105473 is a wasteful number, since it uses less digits than its factorization.

505105473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168368494.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 505105473 is about 22474.5516751725. The cubic root of 505105473 is about 796.3928606478.

Adding to 505105473 its reverse (374501505), we get a palindrome (879606978).

The spelling of 505105473 in words is "five hundred five million, one hundred five thousand, four hundred seventy-three".