505605016 has 32 divisors (see below), whose sum is σ = 1084250880. Its totient is φ = 216525600.

The previous prime is 505605013. The next prime is 505605017. The reversal of 505605016 is 610506505.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505605013) 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, 100071 + ... + 105001.

It is an arithmetic number, because the mean of its divisors is an integer number (33882840).

Almost surely, 2^505605016 is an apocalyptic number.

505605016 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

505605016 is an abundant number, since it is smaller than the sum of its proper divisors (578645864).

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

505605016 is a wasteful number, since it uses less digits than its factorization.

505605016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6775 (or 6771 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 505605016 is about 22485.6624541062. The cubic root of 505605016 is about 796.6553150074.

The spelling of 505605016 in words is "five hundred five million, six hundred five thousand, sixteen".