250274989 has 2 divisors, whose sum is σ = 250274990. Its totient is φ = 250274988.

The previous prime is 250274971. The next prime is 250275001. The reversal of 250274989 is 989472052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130919364 + 119355625 = 11442^2 + 10925^2 .

It is a cyclic number.

It is not a de Polignac number, because 250274989 - 2²¹ = 248177837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250274939) 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, 125137494 + 125137495.

It is an arithmetic number, because the mean of its divisors is an integer number (125137495).

Almost surely, 2^250274989 is an apocalyptic number.

It is an amenable number.

250274989 is a deficient number, since it is larger than the sum of its proper divisors (1).

250274989 is an equidigital number, since it uses as much as digits as its factorization.

250274989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 250274989 is about 15820.0818265899. The cubic root of 250274989 is about 630.1914165976.

The spelling of 250274989 in words is "two hundred fifty million, two hundred seventy-four thousand, nine hundred eighty-nine".