545989033 has 2 divisors, whose sum is σ = 545989034. Its totient is φ = 545989032.

The previous prime is 545989027. The next prime is 545989043. The reversal of 545989033 is 330989545.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 427331584 + 118657449 = 20672^2 + 10893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545989033 is a prime.

It is not a weakly prime, because it can be changed into another prime (545989013) 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, 272994516 + 272994517.

It is an arithmetic number, because the mean of its divisors is an integer number (272994517).

Almost surely, 2^545989033 is an apocalyptic number.

It is an amenable number.

545989033 is a deficient number, since it is larger than the sum of its proper divisors (1).

545989033 is an equidigital number, since it uses as much as digits as its factorization.

545989033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 545989033 is about 23366.4082177814. The cubic root of 545989033 is about 817.3247301996.

The spelling of 545989033 in words is "five hundred forty-five million, nine hundred eighty-nine thousand, thirty-three".