250987069 has 2 divisors, whose sum is σ = 250987070. Its totient is φ = 250987068.

The previous prime is 250987027. The next prime is 250987081. The reversal of 250987069 is 960789052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170615844 + 80371225 = 13062^2 + 8965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250987069 is a prime.

It is a super-2 number, since 2×250987069² = 125989017610421522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250981069) 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, 125493534 + 125493535.

It is an arithmetic number, because the mean of its divisors is an integer number (125493535).

Almost surely, 2^250987069 is an apocalyptic number.

It is an amenable number.

250987069 is a deficient number, since it is larger than the sum of its proper divisors (1).

250987069 is an equidigital number, since it uses as much as digits as its factorization.

250987069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 250987069 is about 15842.5714137573. The cubic root of 250987069 is about 630.7885221883.

The spelling of 250987069 in words is "two hundred fifty million, nine hundred eighty-seven thousand, sixty-nine".