250242257 has 2 divisors, whose sum is σ = 250242258. Its totient is φ = 250242256.

The previous prime is 250242149. The next prime is 250242271. The reversal of 250242257 is 752242052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240994576 + 9247681 = 15524^2 + 3041^2 .

It is a cyclic number.

It is not a de Polignac number, because 250242257 - 2²⁴ = 233465041 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (250242287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125121128 + 125121129.

It is an arithmetic number, because the mean of its divisors is an integer number (125121129).

Almost surely, 2^250242257 is an apocalyptic number.

It is an amenable number.

250242257 is a deficient number, since it is larger than the sum of its proper divisors (1).

250242257 is an equidigital number, since it uses as much as digits as its factorization.

250242257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 250242257 is about 15819.0472848399. The cubic root of 250242257 is about 630.1639423850.

The spelling of 250242257 in words is "two hundred fifty million, two hundred forty-two thousand, two hundred fifty-seven".