505424505 has 32 divisors (see below), whose sum is σ = 822451968. Its totient is φ = 264992000.

The previous prime is 505424497. The next prime is 505424509.

505424505 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 505424505 - 2³ = 505424497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505424509) 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 31 ways as a sum of consecutive naturals, for example, 720655 + ... + 721355.

It is an arithmetic number, because the mean of its divisors is an integer number (25701624).

Almost surely, 2^505424505 is an apocalyptic number.

It is an amenable number.

505424505 is a deficient number, since it is larger than the sum of its proper divisors (317027463).

505424505 is a wasteful number, since it uses less digits than its factorization.

505424505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 505424505 is about 22481.6481824621. The cubic root of 505424505 is about 796.5604964830.

Adding to 505424505 its product of nonzero digits (20000), we get a palindrome (505444505).

Subtracting from 505424505 its product of nonzero digits (20000), we obtain a palindrome (505404505).

The spelling of 505424505 in words is "five hundred five million, four hundred twenty-four thousand, five hundred five".