545963805 has 12 divisors (see below), whose sum is σ = 946337340. Its totient is φ = 291180672.

The previous prime is 545963777. The next prime is 545963807. The reversal of 545963805 is 508369545.

545963805 is a `hidden beast` number, since 5 + 4 + 5 + 9 + 638 + 0 + 5 = 666.

545963805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 373146489 + 172817316 = 19317^2 + 13146^2 .

It is not a de Polignac number, because 545963805 - 2¹⁸ = 545701661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 12132529 = 545963805 / (5 + 4 + 5 + 9 + 6 + 3 + 8 + 0 + 5).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545963807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6066220 + ... + 6066309.

It is an arithmetic number, because the mean of its divisors is an integer number (78861445).

Almost surely, 2^545963805 is an apocalyptic number.

It is an amenable number.

545963805 is a deficient number, since it is larger than the sum of its proper divisors (400373535).

545963805 is a wasteful number, since it uses less digits than its factorization.

545963805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12132540 (or 12132537 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The square root of 545963805 is about 23365.8683767584. The cubic root of 545963805 is about 817.3121415548.

The spelling of 545963805 in words is "five hundred forty-five million, nine hundred sixty-three thousand, eight hundred five".