505244660 has 24 divisors (see below), whose sum is σ = 1066576896. Its totient is φ = 201038240.

The previous prime is 505244659. The next prime is 505244669. The reversal of 505244660 is 66442505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505244669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62312 + ... + 69951.

It is an arithmetic number, because the mean of its divisors is an integer number (44440704).

Almost surely, 2^505244660 is an apocalyptic number.

It is an amenable number.

505244660 is an abundant number, since it is smaller than the sum of its proper divisors (561332236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505244660 is a wasteful number, since it uses less digits than its factorization.

505244660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132463 (or 132461 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 505244660 is about 22477.6480086329. The cubic root of 505244660 is about 796.4660053399.

The spelling of 505244660 in words is "five hundred five million, two hundred forty-four thousand, six hundred sixty".