252643 has 4 divisors (see below), whose sum is σ = 265960. Its totient is φ = 239328.

The previous prime is 252641. The next prime is 252667. The reversal of 252643 is 346252.

It is a happy number.

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 252643 - 2¹ = 252641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6630 + ... + 6667.

It is an arithmetic number, because the mean of its divisors is an integer number (66490).

2²⁵²⁶⁴³ is an apocalyptic number.

252643 is a deficient number, since it is larger than the sum of its proper divisors (13317).

252643 is a wasteful number, since it uses less digits than its factorization.

252643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13316.

The product of its digits is 1440, while the sum is 22.

The square root of 252643 is about 502.6360512339. The cubic root of 252643 is about 63.2172728252.

Adding to 252643 its reverse (346252), we get a palindrome (598895).

The spelling of 252643 in words is "two hundred fifty-two thousand, six hundred forty-three".