505303505 has 32 divisors (see below), whose sum is σ = 704083968.
Its totient is φ = 340992000.
The previous prime is 505303451. The next prime is 505303507.
505303505 is nontrivially palindromic in base 10.
It is not a de Polignac number, because 505303505 - 210 = 505302481 is a prime.
It is not an unprimeable number, because it can be changed into a prime (505303507) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 787985 + ... + 788625.
It is an arithmetic number, because the mean of its divisors is an integer number (22002624).
Almost surely, 2505303505 is an apocalyptic number.
It is an amenable number.
505303505 is a deficient number, since it is larger than the sum of its proper divisors (198780463).
505303505 is a wasteful number, since it uses less digits than its factorization.
505303505 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 977.
The product of its (nonzero) digits is 5625, while the sum is 26.
The square root of 505303505 is about 22478.9569375449.
The cubic root of 505303505 is about 796.4969251605.
The spelling of 505303505 in words is "five hundred five million, three hundred three thousand, five hundred five".