505052111 has 4 divisors (see below), whose sum is σ = 505100400. Its totient is φ = 505003824.

The previous prime is 505052089. The next prime is 505052143. The reversal of 505052111 is 111250505.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 111250505 = 5 ⋅22250101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505052111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505058111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166 + ... + 31803.

It is an arithmetic number, because the mean of its divisors is an integer number (126275100).

Almost surely, 2^505052111 is an apocalyptic number.

505052111 is a deficient number, since it is larger than the sum of its proper divisors (48289).

505052111 is a wasteful number, since it uses less digits than its factorization.

505052111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48288.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 505052111 is about 22473.3644788670. The cubic root of 505052111 is about 796.3648146160.

The spelling of 505052111 in words is "five hundred five million, fifty-two thousand, one hundred eleven".