505611616 has 12 divisors (see below), whose sum is σ = 995422932. Its totient is φ = 252805792.

The previous prime is 505611611. The next prime is 505611647. The reversal of 505611616 is 616116505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505611611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7900150 + ... + 7900213.

It is an arithmetic number, because the mean of its divisors is an integer number (82951911).

Almost surely, 2^505611616 is an apocalyptic number.

It is an amenable number.

505611616 is a deficient number, since it is larger than the sum of its proper divisors (489811316).

505611616 is a wasteful number, since it uses less digits than its factorization.

505611616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15800373 (or 15800365 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 505611616 is about 22485.8092138131. The cubic root of 505611616 is about 796.6587814170.

The spelling of 505611616 in words is "five hundred five million, six hundred eleven thousand, six hundred sixteen".