552009217 has 2 divisors, whose sum is σ = 552009218. Its totient is φ = 552009216.

The previous prime is 552009209. The next prime is 552009221. The reversal of 552009217 is 712900255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497780721 + 54228496 = 22311^2 + 7364^2 .

It is a cyclic number.

It is not a de Polignac number, because 552009217 - 2³ = 552009209 is a prime.

It is not a weakly prime, because it can be changed into another prime (552009277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276004608 + 276004609.

It is an arithmetic number, because the mean of its divisors is an integer number (276004609).

Almost surely, 2^552009217 is an apocalyptic number.

It is an amenable number.

552009217 is a deficient number, since it is larger than the sum of its proper divisors (1).

552009217 is an equidigital number, since it uses as much as digits as its factorization.

552009217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 552009217 is about 23494.8763989088. The cubic root of 552009217 is about 820.3177516316.

The spelling of 552009217 in words is "five hundred fifty-two million, nine thousand, two hundred seventeen".