505061616 has 80 divisors (see below), whose sum is σ = 1342914048. Its totient is φ = 163468800.

The previous prime is 505061587. The next prime is 505061647. The reversal of 505061616 is 616160505.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 532855 + ... + 533801.

Almost surely, 2^505061616 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 505061616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (671457024).

505061616 is an abundant number, since it is smaller than the sum of its proper divisors (837852432).

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

505061616 is a wasteful number, since it uses less digits than its factorization.

505061616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270 (or 1264 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 505061616 is about 22473.5759504357. The cubic root of 505061616 is about 796.3698104042.

It can be divided in two parts, 5050 and 61616, that added together give a palindrome (66666).

The spelling of 505061616 in words is "five hundred five million, sixty-one thousand, six hundred sixteen".