250336421 has 2 divisors, whose sum is σ = 250336422. Its totient is φ = 250336420.

The previous prime is 250336403. The next prime is 250336433. The reversal of 250336421 is 124633052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200788900 + 49547521 = 14170^2 + 7039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250336421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250336721) 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, 125168210 + 125168211.

It is an arithmetic number, because the mean of its divisors is an integer number (125168211).

Almost surely, 2^250336421 is an apocalyptic number.

It is an amenable number.

250336421 is a deficient number, since it is larger than the sum of its proper divisors (1).

250336421 is an equidigital number, since it uses as much as digits as its factorization.

250336421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 250336421 is about 15822.0232903381. The cubic root of 250336421 is about 630.2429742225.

Adding to 250336421 its reverse (124633052), we get a palindrome (374969473).

The spelling of 250336421 in words is "two hundred fifty million, three hundred thirty-six thousand, four hundred twenty-one".