506111481 has 12 divisors (see below), whose sum is σ = 762835008. Its totient is φ = 322737624.

The previous prime is 506111477. The next prime is 506111491. The reversal of 506111481 is 184111605.

506111481 is a `hidden beast` number, since 5 + 0 + 611 + 1 + 48 + 1 = 666.

It is not a de Polignac number, because 506111481 - 2² = 506111477 is a prime.

It is a super-2 number, since 2×506111481² = 512297662400026722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (506111461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1222285 + ... + 1222698.

It is an arithmetic number, because the mean of its divisors is an integer number (63569584).

Almost surely, 2^506111481 is an apocalyptic number.

It is an amenable number.

506111481 is a deficient number, since it is larger than the sum of its proper divisors (256723527).

506111481 is a wasteful number, since it uses less digits than its factorization.

506111481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445012 (or 2445009 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 506111481 is about 22496.9215894086. The cubic root of 506111481 is about 796.9212296871.

The spelling of 506111481 in words is "five hundred six million, one hundred eleven thousand, four hundred eighty-one".