250240313 has 2 divisors, whose sum is σ = 250240314. Its totient is φ = 250240312.

The previous prime is 250240297. The next prime is 250240337. The reversal of 250240313 is 313042052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234304249 + 15936064 = 15307^2 + 3992^2 .

It is a cyclic number.

It is not a de Polignac number, because 250240313 - 2⁴ = 250240297 is a prime.

It is not a weakly prime, because it can be changed into another prime (250240363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125120156 + 125120157.

It is an arithmetic number, because the mean of its divisors is an integer number (125120157).

Almost surely, 2^250240313 is an apocalyptic number.

It is an amenable number.

250240313 is a deficient number, since it is larger than the sum of its proper divisors (1).

250240313 is an equidigital number, since it uses as much as digits as its factorization.

250240313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 250240313 is about 15818.9858398065. The cubic root of 250240313 is about 630.1623105771.

Adding to 250240313 its reverse (313042052), we get a palindrome (563282365).

The spelling of 250240313 in words is "two hundred fifty million, two hundred forty thousand, three hundred thirteen".