252271 has 4 divisors (see below), whose sum is σ = 261000. Its totient is φ = 243544.

The previous prime is 252253. The next prime is 252277. The reversal of 252271 is 172252.

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 252271 - 2⁷ = 252143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4321 + ... + 4378.

It is an arithmetic number, because the mean of its divisors is an integer number (65250).

2²⁵²²⁷¹ is an apocalyptic number.

252271 is a deficient number, since it is larger than the sum of its proper divisors (8729).

252271 is an equidigital number, since it uses as much as digits as its factorization.

252271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728.

The product of its digits is 280, while the sum is 19.

The square root of 252271 is about 502.2658658519. The cubic root of 252271 is about 63.1862298419.

Subtracting from 252271 its sum of digits (19), we obtain a palindrome (252252).

The spelling of 252271 in words is "two hundred fifty-two thousand, two hundred seventy-one".