545585811 has 16 divisors (see below), whose sum is σ = 789028128. Its totient is φ = 333977600.

The previous prime is 545585791. The next prime is 545585819. The reversal of 545585811 is 118585545.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545585811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545585819) 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 15 ways as a sum of consecutive naturals, for example, 128370 + ... + 132551.

It is an arithmetic number, because the mean of its divisors is an integer number (49314258).

Almost surely, 2^545585811 is an apocalyptic number.

545585811 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

545585811 is a deficient number, since it is larger than the sum of its proper divisors (243442317).

545585811 is a wasteful number, since it uses less digits than its factorization.

545585811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260982.

The product of its digits is 160000, while the sum is 42.

The square root of 545585811 is about 23357.7783832281. The cubic root of 545585811 is about 817.1234780040.

The spelling of 545585811 in words is "five hundred forty-five million, five hundred eighty-five thousand, eight hundred eleven".