239825 has 12 divisors (see below), whose sum is σ = 304668. Its totient is φ = 187200.

The previous prime is 239807. The next prime is 239831. The reversal of 239825 is 528932.

239825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 30976 + 208849 = 176^2 + 457^2 .

It is not a de Polignac number, because 239825 - 2¹⁰ = 238801 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 239825.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1235 + ... + 1415.

It is an arithmetic number, because the mean of its divisors is an integer number (25389).

2²³⁹⁸²⁵ is an apocalyptic number.

239825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

239825 is a deficient number, since it is larger than the sum of its proper divisors (64843).

239825 is a wasteful number, since it uses less digits than its factorization.

239825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 239 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 239825 is about 489.7193073588. The cubic root of 239825 is about 62.1295418439.

The spelling of 239825 in words is "two hundred thirty-nine thousand, eight hundred twenty-five".