252647 has 4 divisors (see below), whose sum is σ = 253656. Its totient is φ = 251640.

The previous prime is 252641. The next prime is 252667. The reversal of 252647 is 746252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 252647 - 2⁶ = 252583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252641) 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, 197 + ... + 737.

It is an arithmetic number, because the mean of its divisors is an integer number (63414).

2²⁵²⁶⁴⁷ is an apocalyptic number.

252647 is a deficient number, since it is larger than the sum of its proper divisors (1009).

252647 is an equidigital number, since it uses as much as digits as its factorization.

252647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008.

The product of its digits is 3360, while the sum is 26.

The square root of 252647 is about 502.6400302403. The cubic root of 252647 is about 63.2176064550.

Adding to 252647 its reverse (746252), we get a palindrome (998899).

The spelling of 252647 in words is "two hundred fifty-two thousand, six hundred forty-seven".