250275161 has 2 divisors, whose sum is σ = 250275162. Its totient is φ = 250275160.

The previous prime is 250275143. The next prime is 250275211. The reversal of 250275161 is 161572052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242767561 + 7507600 = 15581^2 + 2740^2 .

It is a cyclic number.

It is not a de Polignac number, because 250275161 - 2⁶ = 250275097 is a prime.

It is not a weakly prime, because it can be changed into another prime (250275061) 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, 125137580 + 125137581.

It is an arithmetic number, because the mean of its divisors is an integer number (125137581).

Almost surely, 2^250275161 is an apocalyptic number.

It is an amenable number.

250275161 is a deficient number, since it is larger than the sum of its proper divisors (1).

250275161 is an equidigital number, since it uses as much as digits as its factorization.

250275161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 250275161 is about 15820.0872627176. The cubic root of 250275161 is about 630.1915609627.

The spelling of 250275161 in words is "two hundred fifty million, two hundred seventy-five thousand, one hundred sixty-one".