545577705 has 12 divisors (see below), whose sum is σ = 945668100. Its totient is φ = 290974752.

The previous prime is 545577671. The next prime is 545577709. The reversal of 545577705 is 507775545.

It is a happy number.

545577705 is a `hidden beast` number, since 5 + 4 + 5 + 577 + 70 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 93547584 + 452030121 = 9672^2 + 21261^2 .

It is not a de Polignac number, because 545577705 - 2¹⁶ = 545512169 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: 12123949 = 545577705 / (5 + 4 + 5 + 5 + 7 + 7 + 7 + 0 + 5).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545577709) 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, 6061930 + ... + 6062019.

It is an arithmetic number, because the mean of its divisors is an integer number (78805675).

Almost surely, 2^545577705 is an apocalyptic number.

It is an amenable number.

545577705 is a deficient number, since it is larger than the sum of its proper divisors (400090395).

545577705 is a wasteful number, since it uses less digits than its factorization.

545577705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12123960 (or 12123957 counting only the distinct ones).

The product of its (nonzero) digits is 857500, while the sum is 45.

The square root of 545577705 is about 23357.6048643691. The cubic root of 545577705 is about 817.1194312005.

The spelling of 545577705 in words is "five hundred forty-five million, five hundred seventy-seven thousand, seven hundred five".