545773 has 2 divisors, whose sum is σ = 545774. Its totient is φ = 545772.

The previous prime is 545759. The next prime is 545789. The reversal of 545773 is 377545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 514089 + 31684 = 717^2 + 178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545723) 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, 272886 + 272887.

It is an arithmetic number, because the mean of its divisors is an integer number (272887).

2⁵⁴⁵⁷⁷³ is an apocalyptic number.

It is an amenable number.

545773 is a deficient number, since it is larger than the sum of its proper divisors (1).

545773 is an equidigital number, since it uses as much as digits as its factorization.

545773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14700, while the sum is 31.

The square root of 545773 is about 738.7645091638. The cubic root of 545773 is about 81.7216918262.

The spelling of 545773 in words is "five hundred forty-five thousand, seven hundred seventy-three".