250530211 has 2 divisors, whose sum is σ = 250530212. Its totient is φ = 250530210.

The previous prime is 250530209. The next prime is 250530223. The reversal of 250530211 is 112035052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 250530211 - 2¹ = 250530209 is a prime.

Together with 250530209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (250530281) 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, 125265105 + 125265106.

It is an arithmetic number, because the mean of its divisors is an integer number (125265106).

Almost surely, 2^250530211 is an apocalyptic number.

250530211 is the 8461-st centered heptagonal number.

250530211 is a deficient number, since it is larger than the sum of its proper divisors (1).

250530211 is an equidigital number, since it uses as much as digits as its factorization.

250530211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 250530211 is about 15828.1461643491. The cubic root of 250530211 is about 630.4055598122.

Adding to 250530211 its reverse (112035052), we get a palindrome (362565263).

The spelling of 250530211 in words is "two hundred fifty million, five hundred thirty thousand, two hundred eleven".