545605513 has 2 divisors, whose sum is σ = 545605514. Its totient is φ = 545605512.

The previous prime is 545605483. The next prime is 545605559. The reversal of 545605513 is 315506545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349241344 + 196364169 = 18688^2 + 14013^2 .

It is a cyclic number.

It is not a de Polignac number, because 545605513 - 2⁵ = 545605481 is a prime.

It is not a weakly prime, because it can be changed into another prime (545602513) 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, 272802756 + 272802757.

It is an arithmetic number, because the mean of its divisors is an integer number (272802757).

Almost surely, 2^545605513 is an apocalyptic number.

It is an amenable number.

545605513 is a deficient number, since it is larger than the sum of its proper divisors (1).

545605513 is an equidigital number, since it uses as much as digits as its factorization.

545605513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 545605513 is about 23358.2001232972. The cubic root of 545605513 is about 817.1333137760.

The spelling of 545605513 in words is "five hundred forty-five million, six hundred five thousand, five hundred thirteen".