250342321 has 2 divisors, whose sum is σ = 250342322. Its totient is φ = 250342320.

The previous prime is 250342319. The next prime is 250342349. The reversal of 250342321 is 123243052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131423296 + 118919025 = 11464^2 + 10905^2 .

It is a cyclic number.

It is not a de Polignac number, because 250342321 - 2¹ = 250342319 is a prime.

Together with 250342319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 250342292 and 250342301.

It is not a weakly prime, because it can be changed into another prime (250342381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125171160 + 125171161.

It is an arithmetic number, because the mean of its divisors is an integer number (125171161).

Almost surely, 2^250342321 is an apocalyptic number.

It is an amenable number.

250342321 is a deficient number, since it is larger than the sum of its proper divisors (1).

250342321 is an equidigital number, since it uses as much as digits as its factorization.

250342321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 250342321 is about 15822.2097382129. The cubic root of 250342321 is about 630.2479254322.

Adding to 250342321 its reverse (123243052), we get a palindrome (373585373).

The spelling of 250342321 in words is "two hundred fifty million, three hundred forty-two thousand, three hundred twenty-one".