545532241 has 2 divisors, whose sum is σ = 545532242. Its totient is φ = 545532240.

The previous prime is 545532223. The next prime is 545532277. The reversal of 545532241 is 142235545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343323841 + 202208400 = 18529^2 + 14220^2 .

It is a cyclic number.

It is not a de Polignac number, because 545532241 - 2⁹ = 545531729 is a prime.

It is not a weakly prime, because it can be changed into another prime (545532041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272766120 + 272766121.

It is an arithmetic number, because the mean of its divisors is an integer number (272766121).

Almost surely, 2^545532241 is an apocalyptic number.

It is an amenable number.

545532241 is a deficient number, since it is larger than the sum of its proper divisors (1).

545532241 is an equidigital number, since it uses as much as digits as its factorization.

545532241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24000, while the sum is 31.

The square root of 545532241 is about 23356.6316278696. The cubic root of 545532241 is about 817.0967332117.

Adding to 545532241 its reverse (142235545), we get a palindrome (687767786).

The spelling of 545532241 in words is "five hundred forty-five million, five hundred thirty-two thousand, two hundred forty-one".