250323989 has 2 divisors, whose sum is σ = 250323990. Its totient is φ = 250323988.

The previous prime is 250323959. The next prime is 250323991. The reversal of 250323989 is 989323052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250114225 + 209764 = 15815^2 + 458^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250323989 is a prime.

Together with 250323991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250323959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125161994 + 125161995.

It is an arithmetic number, because the mean of its divisors is an integer number (125161995).

Almost surely, 2^250323989 is an apocalyptic number.

It is an amenable number.

250323989 is a deficient number, since it is larger than the sum of its proper divisors (1).

250323989 is an equidigital number, since it uses as much as digits as its factorization.

250323989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 250323989 is about 15821.6304153523. The cubic root of 250323989 is about 630.2325411816.

The spelling of 250323989 in words is "two hundred fifty million, three hundred twenty-three thousand, nine hundred eighty-nine".