551794169 has 2 divisors, whose sum is σ = 551794170. Its totient is φ = 551794168.

The previous prime is 551794157. The next prime is 551794237. The reversal of 551794169 is 961497155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518154169 + 33640000 = 22763^2 + 5800^2 .

It is a cyclic number.

It is not a de Polignac number, because 551794169 - 2⁴ = 551794153 is a prime.

It is a super-2 number, since 2×551794169² = 608953609884801122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (551794069) 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, 275897084 + 275897085.

It is an arithmetic number, because the mean of its divisors is an integer number (275897085).

Almost surely, 2^551794169 is an apocalyptic number.

It is an amenable number.

551794169 is a deficient number, since it is larger than the sum of its proper divisors (1).

551794169 is an equidigital number, since it uses as much as digits as its factorization.

551794169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 47.

The square root of 551794169 is about 23490.2994659498. The cubic root of 551794169 is about 820.2112131903.

The spelling of 551794169 in words is "five hundred fifty-one million, seven hundred ninety-four thousand, one hundred sixty-nine".