545323545 has 24 divisors (see below), whose sum is σ = 1017938376. Its totient is φ = 268466688.

The previous prime is 545323517. The next prime is 545323547.

545323545 is a `hidden beast` number, since 54 + 532 + 35 + 45 = 666.

545323545 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 23155344 + 522168201 = 4812^2 + 22851^2 .

It is not a de Polignac number, because 545323545 - 2¹⁰ = 545322521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545323547) 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 in 23 ways as a sum of consecutive naturals, for example, 465504 + ... + 466673.

It is an arithmetic number, because the mean of its divisors is an integer number (42414099).

Almost surely, 2^545323545 is an apocalyptic number.

It is an amenable number.

545323545 is a deficient number, since it is larger than the sum of its proper divisors (472614831).

545323545 is a wasteful number, since it uses less digits than its factorization.

545323545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932201 (or 932198 counting only the distinct ones).

The product of its digits is 180000, while the sum is 36.

The square root of 545323545 is about 23352.1636042573. The cubic root of 545323545 is about 816.9925251518.

The spelling of 545323545 in words is "five hundred forty-five million, three hundred twenty-three thousand, five hundred forty-five".