505505016 has 64 divisors (see below), whose sum is σ = 1408855200. Its totient is φ = 167940864.

The previous prime is 505505009. The next prime is 505505041. The reversal of 505505016 is 610505505.

505505016 is a `hidden beast` number, since 50 + 550 + 50 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63870 + ... + 71346.

Almost surely, 2^505505016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505505016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704427600).

505505016 is an abundant number, since it is smaller than the sum of its proper divisors (903350184).

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

505505016 is a wasteful number, since it uses less digits than its factorization.

505505016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7805 (or 7795 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 505505016 is about 22483.4387049668. The cubic root of 505505016 is about 796.6027899587.

It can be divided in two parts, 505 and 505016, that added together give a square (505521 = 711²).

The spelling of 505505016 in words is "five hundred five million, five hundred five thousand, sixteen".