272530552321 has 2 divisors, whose sum is σ = 272530552322. Its totient is φ = 272530552320.

The previous prime is 272530552313. The next prime is 272530552367. The reversal of 272530552321 is 123255035272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161748752400 + 110781799921 = 402180^2 + 332839^2 .

It is a cyclic number.

It is not a de Polignac number, because 272530552321 - 2³ = 272530552313 is a prime.

It is not a weakly prime, because it can be changed into another prime (272530552381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136265276160 + 136265276161.

It is an arithmetic number, because the mean of its divisors is an integer number (136265276161).

Almost surely, 2^272530552321 is an apocalyptic number.

It is an amenable number.

272530552321 is a deficient number, since it is larger than the sum of its proper divisors (1).

272530552321 is an equidigital number, since it uses as much as digits as its factorization.

272530552321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 37.

Adding to 272530552321 its reverse (123255035272), we get a palindrome (395785587593).

The spelling of 272530552321 in words is "two hundred seventy-two billion, five hundred thirty million, five hundred fifty-two thousand, three hundred twenty-one".