545909545 has 16 divisors (see below), whose sum is σ = 666051840. Its totient is φ = 429480000.

The previous prime is 545909527. The next prime is 545909561.

545909545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545909545 - 2¹⁵ = 545876777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545909495 and 545909504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72676 + ... + 79834.

It is an arithmetic number, because the mean of its divisors is an integer number (41628240).

Almost surely, 2^545909545 is an apocalyptic number.

It is an amenable number.

545909545 is a deficient number, since it is larger than the sum of its proper divisors (120142295).

545909545 is a wasteful number, since it uses less digits than its factorization.

545909545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7416.

The product of its (nonzero) digits is 810000, while the sum is 46.

The square root of 545909545 is about 23364.7072526064. The cubic root of 545909545 is about 817.2850647745.

The spelling of 545909545 in words is "five hundred forty-five million, nine hundred nine thousand, five hundred forty-five".