250247 has 4 divisors (see below), whose sum is σ = 251496. Its totient is φ = 249000.

The previous prime is 250199. The next prime is 250253. The reversal of 250247 is 742052.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 250247 - 2¹² = 246151 is a prime.

It is a super-2 number, since 2×250247² = 125247122018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250267) 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, 248 + ... + 749.

It is an arithmetic number, because the mean of its divisors is an integer number (62874).

2²⁵⁰²⁴⁷ is an apocalyptic number.

250247 is a deficient number, since it is larger than the sum of its proper divisors (1249).

250247 is an equidigital number, since it uses as much as digits as its factorization.

250247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 250247 is about 500.2469390211. The cubic root of 250247 is about 63.0167923659.

Adding to 250247 its reverse (742052), we get a palindrome (992299).

The spelling of 250247 in words is "two hundred fifty thousand, two hundred forty-seven".