250825 has 12 divisors (see below), whose sum is σ = 317440. Its totient is φ = 196560.

The previous prime is 250813. The next prime is 250829. The reversal of 250825 is 528052.

It is not a de Polignac number, because 250825 - 2⁵ = 250793 is a prime.

250825 is a modest number, since divided by 825 gives 25 as remainder.

250825 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 250796 and 250805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1912 + ... + 2038.

2²⁵⁰⁸²⁵ is an apocalyptic number.

250825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250825 is a deficient number, since it is larger than the sum of its proper divisors (66615).

250825 is a wasteful number, since it uses less digits than its factorization.

250825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 250825 is about 500.8243204957. The cubic root of 250825 is about 63.0652720667.

Adding to 250825 its reverse (528052), we get a palindrome (778877).

The spelling of 250825 in words is "two hundred fifty thousand, eight hundred twenty-five".