545558603 has 2 divisors, whose sum is σ = 545558604. Its totient is φ = 545558602.

The previous prime is 545558593. The next prime is 545558633. The reversal of 545558603 is 306855545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545558603 - 2⁸ = 545558347 is a prime.

It is a super-4 number, since 4×545558603⁴ (a number of 36 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (545558633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272779301 + 272779302.

It is an arithmetic number, because the mean of its divisors is an integer number (272779302).

Almost surely, 2^545558603 is an apocalyptic number.

545558603 is a deficient number, since it is larger than the sum of its proper divisors (1).

545558603 is an equidigital number, since it uses as much as digits as its factorization.

545558603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360000, while the sum is 41.

The square root of 545558603 is about 23357.1959575631. The cubic root of 545558603 is about 817.1098946441.

The spelling of 545558603 in words is "five hundred forty-five million, five hundred fifty-eight thousand, six hundred three".