552021329 has 2 divisors, whose sum is σ = 552021330. Its totient is φ = 552021328.

The previous prime is 552021319. The next prime is 552021359. The reversal of 552021329 is 923120255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377252929 + 174768400 = 19423^2 + 13220^2 .

It is a cyclic number.

It is not a de Polignac number, because 552021329 - 2⁴ = 552021313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (552021319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276010664 + 276010665.

It is an arithmetic number, because the mean of its divisors is an integer number (276010665).

Almost surely, 2^552021329 is an apocalyptic number.

It is an amenable number.

552021329 is a deficient number, since it is larger than the sum of its proper divisors (1).

552021329 is an equidigital number, since it uses as much as digits as its factorization.

552021329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 552021329 is about 23495.1341558204. The cubic root of 552021329 is about 820.3237512995.

The spelling of 552021329 in words is "five hundred fifty-two million, twenty-one thousand, three hundred twenty-nine".