2251051169 has 2 divisors, whose sum is σ = 2251051170. Its totient is φ = 2251051168.

The previous prime is 2251051129. The next prime is 2251051181. The reversal of 2251051169 is 9611501522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2142578944 + 108472225 = 46288^2 + 10415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2251051169 is a prime.

It is a super-2 number, since 2×2251051169² = 10134462730912533122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2251051129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125525584 + 1125525585.

It is an arithmetic number, because the mean of its divisors is an integer number (1125525585).

Almost surely, 2^2251051169 is an apocalyptic number.

It is an amenable number.

2251051169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251051169 is an equidigital number, since it uses as much as digits as its factorization.

2251051169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 2251051169 is about 47445.2439028403. The cubic root of 2251051169 is about 1310.5747277129.

The spelling of 2251051169 in words is "two billion, two hundred fifty-one million, fifty-one thousand, one hundred sixty-nine".