259825 has 12 divisors (see below), whose sum is σ = 339760. Its totient is φ = 196560.

The previous prime is 259823. The next prime is 259829. The reversal of 259825 is 528952.

It is a happy number.

It is not a de Polignac number, because 259825 - 2¹ = 259823 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (259823) 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 11 ways as a sum of consecutive naturals, for example, 202 + ... + 748.

2²⁵⁹⁸²⁵ is an apocalyptic number.

259825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

259825 is a deficient number, since it is larger than the sum of its proper divisors (79935).

259825 is a wasteful number, since it uses less digits than its factorization.

259825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 571 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 259825 is about 509.7303208560. The cubic root of 259825 is about 63.8107200535.

The spelling of 259825 in words is "two hundred fifty-nine thousand, eight hundred twenty-five".