551314217 has 2 divisors, whose sum is σ = 551314218. Its totient is φ = 551314216.

The previous prime is 551314201. The next prime is 551314237. The reversal of 551314217 is 712413155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282878761 + 268435456 = 16819^2 + 16384^2 .

It is a cyclic number.

It is not a de Polignac number, because 551314217 - 2⁴ = 551314201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551314217.

It is not a weakly prime, because it can be changed into another prime (551314237) 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, 275657108 + 275657109.

It is an arithmetic number, because the mean of its divisors is an integer number (275657109).

Almost surely, 2^551314217 is an apocalyptic number.

It is an amenable number.

551314217 is a deficient number, since it is larger than the sum of its proper divisors (1).

551314217 is an equidigital number, since it uses as much as digits as its factorization.

551314217 is an odious number, because the sum of its binary digits is odd.

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

The square root of 551314217 is about 23480.0812818014. The cubic root of 551314217 is about 819.9733369280.

The spelling of 551314217 in words is "five hundred fifty-one million, three hundred fourteen thousand, two hundred seventeen".