505611113 has 8 divisors (see below), whose sum is σ = 578299200. Its totient is φ = 433037520.

The previous prime is 505611103. The next prime is 505611131. The reversal of 505611113 is 311116505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505611113 - 2⁸ = 505610857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505611103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18938 + ... + 37011.

It is an arithmetic number, because the mean of its divisors is an integer number (72287400).

Almost surely, 2^505611113 is an apocalyptic number.

It is an amenable number.

505611113 is a deficient number, since it is larger than the sum of its proper divisors (72688087).

505611113 is a wasteful number, since it uses less digits than its factorization.

505611113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57247.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 505611113 is about 22485.7980289782. The cubic root of 505611113 is about 796.6585172356.

Adding to 505611113 its reverse (311116505), we get a palindrome (816727618).

The spelling of 505611113 in words is "five hundred five million, six hundred eleven thousand, one hundred thirteen".