506266111 has 4 divisors (see below), whose sum is σ = 545209672. Its totient is φ = 467322552.

The previous prime is 506266067. The next prime is 506266121. The reversal of 506266111 is 111662605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 506266111 - 2⁷ = 506265983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 506266111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506266121) 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 3 ways as a sum of consecutive naturals, for example, 19471761 + ... + 19471786.

It is an arithmetic number, because the mean of its divisors is an integer number (136302418).

Almost surely, 2^506266111 is an apocalyptic number.

506266111 is a deficient number, since it is larger than the sum of its proper divisors (38943561).

506266111 is a wasteful number, since it uses less digits than its factorization.

506266111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38943560.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 506266111 is about 22500.3580193738. The cubic root of 506266111 is about 797.0023813613.

The spelling of 506266111 in words is "five hundred six million, two hundred sixty-six thousand, one hundred eleven".