552661217 has 2 divisors, whose sum is σ = 552661218. Its totient is φ = 552661216.

The previous prime is 552661163. The next prime is 552661223. The reversal of 552661217 is 712166255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 498137761 + 54523456 = 22319^2 + 7384^2 .

It is a cyclic number.

It is not a de Polignac number, because 552661217 - 2²⁴ = 535884001 is a prime.

It is not a weakly prime, because it can be changed into another prime (552661717) 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, 276330608 + 276330609.

It is an arithmetic number, because the mean of its divisors is an integer number (276330609).

Almost surely, 2^552661217 is an apocalyptic number.

It is an amenable number.

552661217 is a deficient number, since it is larger than the sum of its proper divisors (1).

552661217 is an equidigital number, since it uses as much as digits as its factorization.

552661217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 35.

The square root of 552661217 is about 23508.7476697505. The cubic root of 552661217 is about 820.6405945113.

The spelling of 552661217 in words is "five hundred fifty-two million, six hundred sixty-one thousand, two hundred seventeen".