500660505 has 48 divisors (see below), whose sum is σ = 894713040. Its totient is φ = 258799104.

The previous prime is 500660491. The next prime is 500660513. The reversal of 500660505 is 505066005.

500660505 is a `hidden beast` number, since 50 + 0 + 6 + 605 + 0 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 30074256 + 470586249 = 5484^2 + 21693^2 .

It is not a de Polignac number, because 500660505 - 2⁶ = 500660441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 647299 + ... + 648071.

It is an arithmetic number, because the mean of its divisors is an integer number (18639855).

Almost surely, 2^500660505 is an apocalyptic number.

It is an amenable number.

500660505 is a deficient number, since it is larger than the sum of its proper divisors (394052535).

500660505 is a wasteful number, since it uses less digits than its factorization.

500660505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 500660505 is about 22375.4442414000. Note that the first 3 decimals coincide. The cubic root of 500660505 is about 794.0498676452.

Subtracting from 500660505 its product of nonzero digits (4500), we obtain a palindrome (500656005).

The spelling of 500660505 in words is "five hundred million, six hundred sixty thousand, five hundred five".