250622161 has 2 divisors, whose sum is σ = 250622162. Its totient is φ = 250622160.

The previous prime is 250622153. The next prime is 250622171. The reversal of 250622161 is 161226052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250620561 + 1600 = 15831^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 250622161 - 2³ = 250622153 is a prime.

It is a super-2 number, since 2×250622161² = 125622935168619842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (250622171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125311080 + 125311081.

It is an arithmetic number, because the mean of its divisors is an integer number (125311081).

Almost surely, 2^250622161 is an apocalyptic number.

It is an amenable number.

250622161 is a deficient number, since it is larger than the sum of its proper divisors (1).

250622161 is an equidigital number, since it uses as much as digits as its factorization.

250622161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 250622161 is about 15831.0505336822. The cubic root of 250622161 is about 630.4826745321.

The spelling of 250622161 in words is "two hundred fifty million, six hundred twenty-two thousand, one hundred sixty-one".