252279 has 6 divisors (see below), whose sum is σ = 364416. Its totient is φ = 168180.
The previous prime is 252277. The next prime is 252283. The reversal of 252279 is 972252.
It is a happy number.
It is not a de Polignac number, because 252279 - 21 = 252277 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 5 ways as a sum of consecutive naturals, for example, 14007 + ... + 14024.
It is an arithmetic number, because the mean of its divisors is an integer number (60736).
2252279 is an apocalyptic number.
252279 is a deficient number, since it is larger than the sum of its proper divisors (112137).
252279 is a wasteful number, since it uses less digits than its factorization.
252279 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28037 (or 28034 counting only the distinct ones).
The product of its digits is 2520, while the sum is 27.
The square root of 252279 is about 502.2738296985. The cubic root of 252279 is about 63.1868977539.
Subtracting from 252279 its sum of digits (27), we obtain a palindrome (252252).
It can be divided in two parts, 2522 and 79, that added together give a square (2601 = 512).
The spelling of 252279 in words is "two hundred fifty-two thousand, two hundred seventy-nine".
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