252165223 has 4 divisors (see below), whose sum is σ = 252586800. Its totient is φ = 251743648.

The previous prime is 252165203. The next prime is 252165257. The reversal of 252165223 is 322561252.

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-252165223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252165191 and 252165200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252165203) 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, 209890 + ... + 211087.

It is an arithmetic number, because the mean of its divisors is an integer number (63146700).

Almost surely, 2^252165223 is an apocalyptic number.

252165223 is a deficient number, since it is larger than the sum of its proper divisors (421577).

252165223 is an equidigital number, since it uses as much as digits as its factorization.

252165223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421576.

The product of its digits is 7200, while the sum is 28.

The square root of 252165223 is about 15879.7110490084. The cubic root of 252165223 is about 631.7739729780.

The spelling of 252165223 in words is "two hundred fifty-two million, one hundred sixty-five thousand, two hundred twenty-three".