250002281 has 2 divisors, whose sum is σ = 250002282. Its totient is φ = 250002280.

The previous prime is 250002257. The next prime is 250002283. The reversal of 250002281 is 182200052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188238400 + 61763881 = 13720^2 + 7859^2 .

It is a cyclic number.

It is not a de Polignac number, because 250002281 - 2¹⁸ = 249740137 is a prime.

It is a super-2 number, since 2×250002281² = 125002281010405922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 250002283, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (250002283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125001140 + 125001141.

It is an arithmetic number, because the mean of its divisors is an integer number (125001141).

Almost surely, 2^250002281 is an apocalyptic number.

It is an amenable number.

250002281 is a deficient number, since it is larger than the sum of its proper divisors (1).

250002281 is an equidigital number, since it uses as much as digits as its factorization.

250002281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 250002281 is about 15811.4604322308. The cubic root of 250002281 is about 629.9624408616.

The spelling of 250002281 in words is "two hundred fifty million, two thousand, two hundred eighty-one".