252006111 has 24 divisors (see below), whose sum is σ = 416960544. Its totient is φ = 143674560.

The previous prime is 252006109. The next prime is 252006121. The reversal of 252006111 is 111600252.

252006111 is a `hidden beast` number, since 2 + 52 + 0 + 0 + 611 + 1 = 666.

It is not a de Polignac number, because 252006111 - 2¹ = 252006109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252006121) 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 23 ways as a sum of consecutive naturals, for example, 24705 + ... + 33381.

It is an arithmetic number, because the mean of its divisors is an integer number (17373356).

Almost surely, 2^252006111 is an apocalyptic number.

252006111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252006111 is a deficient number, since it is larger than the sum of its proper divisors (164954433).

252006111 is a wasteful number, since it uses less digits than its factorization.

252006111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9151 (or 9148 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 252006111 is about 15874.7003436285. The cubic root of 252006111 is about 631.6410654484.

Adding to 252006111 its reverse (111600252), we get a palindrome (363606363).

The spelling of 252006111 in words is "two hundred fifty-two million, six thousand, one hundred eleven".