250505273 has 2 divisors, whose sum is σ = 250505274. Its totient is φ = 250505272.

The previous prime is 250505261. The next prime is 250505303. The reversal of 250505273 is 372505052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238023184 + 12482089 = 15428^2 + 3533^2 .

It is a cyclic number.

It is not a de Polignac number, because 250505273 - 2²² = 246310969 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (250505473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125252636 + 125252637.

It is an arithmetic number, because the mean of its divisors is an integer number (125252637).

Almost surely, 2^250505273 is an apocalyptic number.

It is an amenable number.

250505273 is a deficient number, since it is larger than the sum of its proper divisors (1).

250505273 is an equidigital number, since it uses as much as digits as its factorization.

250505273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 250505273 is about 15827.3583708716. The cubic root of 250505273 is about 630.3846420748.

The spelling of 250505273 in words is "two hundred fifty million, five hundred five thousand, two hundred seventy-three".