250820 has 12 divisors (see below), whose sum is σ = 526764. Its totient is φ = 100320.

The previous prime is 250813. The next prime is 250829. The reversal of 250820 is 28052.

It is a happy number.

250820 is digitally balanced in base 3, 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 2 ways, for example, as 158404 + 92416 = 398^2 + 304^2 .

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6251 + ... + 6290.

It is an arithmetic number, because the mean of its divisors is an integer number (43897).

2²⁵⁰⁸²⁰ is an apocalyptic number.

250820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250820 is an abundant number, since it is smaller than the sum of its proper divisors (275944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250820 is a wasteful number, since it uses less digits than its factorization.

250820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12550 (or 12548 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 250820 is about 500.8193287005. The cubic root of 250820 is about 63.0648530116.

Adding to 250820 its reverse (28052), we get a palindrome (278872).

The spelling of 250820 in words is "two hundred fifty thousand, eight hundred twenty".