547232321 has 2 divisors, whose sum is σ = 547232322. Its totient is φ = 547232320.

The previous prime is 547232303. The next prime is 547232333. The reversal of 547232321 is 123232745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 449440000 + 97792321 = 21200^2 + 9889^2 .

It is a cyclic number.

It is not a de Polignac number, because 547232321 - 2¹⁰ = 547231297 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (547232341) 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, 273616160 + 273616161.

It is an arithmetic number, because the mean of its divisors is an integer number (273616161).

Almost surely, 2^547232321 is an apocalyptic number.

It is an amenable number.

547232321 is a deficient number, since it is larger than the sum of its proper divisors (1).

547232321 is an equidigital number, since it uses as much as digits as its factorization.

547232321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 547232321 is about 23392.9972641387. The cubic root of 547232321 is about 817.9446447797.

The spelling of 547232321 in words is "five hundred forty-seven million, two hundred thirty-two thousand, three hundred twenty-one".