252666103 has 4 divisors (see below), whose sum is σ = 252706608. Its totient is φ = 252625600.

The previous prime is 252666091. The next prime is 252666133. The reversal of 252666103 is 301666252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252666103 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252666133) 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, 8698 + ... + 24103.

It is an arithmetic number, because the mean of its divisors is an integer number (63176652).

Almost surely, 2^252666103 is an apocalyptic number.

252666103 is a deficient number, since it is larger than the sum of its proper divisors (40505).

252666103 is an equidigital number, since it uses as much as digits as its factorization.

252666103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40504.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 252666103 is about 15895.4742930181. The cubic root of 252666103 is about 632.1919973935.

The spelling of 252666103 in words is "two hundred fifty-two million, six hundred sixty-six thousand, one hundred three".