250530317 has 2 divisors, whose sum is σ = 250530318. Its totient is φ = 250530316.

The previous prime is 250530289. The next prime is 250530323. The reversal of 250530317 is 713035052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225420196 + 25110121 = 15014^2 + 5011^2 .

It is a cyclic number.

It is not a de Polignac number, because 250530317 - 2¹⁴ = 250513933 is a prime.

It is a super-2 number, since 2×250530317² = 125530879472240978, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250530017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125265158 + 125265159.

It is an arithmetic number, because the mean of its divisors is an integer number (125265159).

Almost surely, 2^250530317 is an apocalyptic number.

It is an amenable number.

250530317 is a deficient number, since it is larger than the sum of its proper divisors (1).

250530317 is an equidigital number, since it uses as much as digits as its factorization.

250530317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 250530317 is about 15828.1495128142. The cubic root of 250530317 is about 630.4056487210.

Adding to 250530317 its reverse (713035052), we get a palindrome (963565369).

The spelling of 250530317 in words is "two hundred fifty million, five hundred thirty thousand, three hundred seventeen".