250981273 has 2 divisors, whose sum is σ = 250981274. Its totient is φ = 250981272.

The previous prime is 250981259. The next prime is 250981321. The reversal of 250981273 is 372189052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213978384 + 37002889 = 14628^2 + 6083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250981273 is a prime.

It is not a weakly prime, because it can be changed into another prime (250981243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125490636 + 125490637.

It is an arithmetic number, because the mean of its divisors is an integer number (125490637).

Almost surely, 2^250981273 is an apocalyptic number.

It is an amenable number.

250981273 is a deficient number, since it is larger than the sum of its proper divisors (1).

250981273 is an equidigital number, since it uses as much as digits as its factorization.

250981273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 250981273 is about 15842.3884878512. The cubic root of 250981273 is about 630.7836665883.

The spelling of 250981273 in words is "two hundred fifty million, nine hundred eighty-one thousand, two hundred seventy-three".