545727545 has 12 divisors (see below), whose sum is σ = 719819940. Its totient is φ = 396892320.

The previous prime is 545727527. The next prime is 545727551.

545727545 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 141395881 + 404331664 = 11891^2 + 20108^2 .

It is not a de Polignac number, because 545727545 - 2²⁰ = 544678969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545727496 and 545727505.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 450410 + ... + 451619.

It is an arithmetic number, because the mean of its divisors is an integer number (59984995).

Almost surely, 2^545727545 is an apocalyptic number.

545727545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545727545 is a deficient number, since it is larger than the sum of its proper divisors (174092395).

545727545 is a wasteful number, since it uses less digits than its factorization.

545727545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902056 (or 902045 counting only the distinct ones).

The product of its digits is 980000, while the sum is 44.

The square root of 545727545 is about 23360.8121648200. The cubic root of 545727545 is about 817.1942301810.

The spelling of 545727545 in words is "five hundred forty-five million, seven hundred twenty-seven thousand, five hundred forty-five".