250017247 has 2 divisors, whose sum is σ = 250017248. Its totient is φ = 250017246.

The previous prime is 250017233. The next prime is 250017253. The reversal of 250017247 is 742710052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 250017247 - 2¹⁵ = 249984479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250017227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125008623 + 125008624.

It is an arithmetic number, because the mean of its divisors is an integer number (125008624).

Almost surely, 2^250017247 is an apocalyptic number.

250017247 is a deficient number, since it is larger than the sum of its proper divisors (1).

250017247 is an equidigital number, since it uses as much as digits as its factorization.

250017247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 250017247 is about 15811.9336894638. The cubic root of 250017247 is about 629.9750111865.

Adding to 250017247 its reverse (742710052), we get a palindrome (992727299).

The spelling of 250017247 in words is "two hundred fifty million, seventeen thousand, two hundred forty-seven".