545355977 has 2 divisors, whose sum is σ = 545355978. Its totient is φ = 545355976.

The previous prime is 545355959. The next prime is 545356003. The reversal of 545355977 is 779553545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394459321 + 150896656 = 19861^2 + 12284^2 .

It is a cyclic number.

It is not a de Polignac number, because 545355977 - 2¹⁴ = 545339593 is a prime.

It is not a weakly prime, because it can be changed into another prime (545355077) 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, 272677988 + 272677989.

It is an arithmetic number, because the mean of its divisors is an integer number (272677989).

Almost surely, 2^545355977 is an apocalyptic number.

It is an amenable number.

545355977 is a deficient number, since it is larger than the sum of its proper divisors (1).

545355977 is an equidigital number, since it uses as much as digits as its factorization.

545355977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3307500, while the sum is 50.

The square root of 545355977 is about 23352.8580049638. The cubic root of 545355977 is about 817.0087211493.

The spelling of 545355977 in words is "five hundred forty-five million, three hundred fifty-five thousand, nine hundred seventy-seven".