250540 has 12 divisors (see below), whose sum is σ = 526176. Its totient is φ = 100208.

The previous prime is 250501. The next prime is 250543. The reversal of 250540 is 45052.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (250543) 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, 6244 + ... + 6283.

It is an arithmetic number, because the mean of its divisors is an integer number (43848).

2²⁵⁰⁵⁴⁰ is an apocalyptic number.

250540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250540 is an abundant number, since it is smaller than the sum of its proper divisors (275636).

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

250540 is a wasteful number, since it uses less digits than its factorization.

250540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12536 (or 12534 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 250540 is about 500.5397087145. The cubic root of 250540 is about 63.0413770345.

Adding to 250540 its reverse (45052), we get a palindrome (295592).

The spelling of 250540 in words is "two hundred fifty thousand, five hundred forty".