551422241 has 2 divisors, whose sum is σ = 551422242. Its totient is φ = 551422240.

The previous prime is 551422213. The next prime is 551422273. The reversal of 551422241 is 142224155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 542890000 + 8532241 = 23300^2 + 2921^2 .

It is a cyclic number.

It is not a de Polignac number, because 551422241 - 2¹⁸ = 551160097 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551422241.

It is not a weakly prime, because it can be changed into another prime (551422741) 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, 275711120 + 275711121.

It is an arithmetic number, because the mean of its divisors is an integer number (275711121).

Almost surely, 2^551422241 is an apocalyptic number.

It is an amenable number.

551422241 is a deficient number, since it is larger than the sum of its proper divisors (1).

551422241 is an equidigital number, since it uses as much as digits as its factorization.

551422241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3200, while the sum is 26.

The square root of 551422241 is about 23482.3815018835. The cubic root of 551422241 is about 820.0268883707.

Adding to 551422241 its reverse (142224155), we get a palindrome (693646396).

The spelling of 551422241 in words is "five hundred fifty-one million, four hundred twenty-two thousand, two hundred forty-one".