545443641 has 12 divisors (see below), whose sum is σ = 788216832. Its totient is φ = 363465816.

The previous prime is 545443573. The next prime is 545443721. The reversal of 545443641 is 146344545.

545443641 is a `hidden beast` number, since 5 + 4 + 5 + 4 + 4 + 3 + 641 = 666.

It is not a de Polignac number, because 545443641 - 2¹⁰ = 545442617 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 545443596 and 545443605.

It is not an unprimeable number, because it can be changed into a prime (545443441) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9640 + ... + 34406.

It is an arithmetic number, because the mean of its divisors is an integer number (65684736).

Almost surely, 2^545443641 is an apocalyptic number.

It is an amenable number.

545443641 is a deficient number, since it is larger than the sum of its proper divisors (242773191).

545443641 is a wasteful number, since it uses less digits than its factorization.

545443641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27220 (or 27217 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 545443641 is about 23354.7348732543. The cubic root of 545443641 is about 817.0524958690.

It can be divided in two parts, 54544 and 3641, that added together give a palindrome (58185).

The spelling of 545443641 in words is "five hundred forty-five million, four hundred forty-three thousand, six hundred forty-one".