250216189 has 2 divisors, whose sum is σ = 250216190. Its totient is φ = 250216188.

The previous prime is 250216139. The next prime is 250216207. The reversal of 250216189 is 981612052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238084900 + 12131289 = 15430^2 + 3483^2 .

It is a cyclic number.

It is not a de Polignac number, because 250216189 - 2⁷ = 250216061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250216129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125108094 + 125108095.

It is an arithmetic number, because the mean of its divisors is an integer number (125108095).

Almost surely, 2^250216189 is an apocalyptic number.

It is an amenable number.

250216189 is a deficient number, since it is larger than the sum of its proper divisors (1).

250216189 is an equidigital number, since it uses as much as digits as its factorization.

250216189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 250216189 is about 15818.2233199560. The cubic root of 250216189 is about 630.1420600109.

The spelling of 250216189 in words is "two hundred fifty million, two hundred sixteen thousand, one hundred eighty-nine".