545552005 has 8 divisors (see below), whose sum is σ = 661144824. Its totient is φ = 432120000.

The previous prime is 545551991. The next prime is 545552009. The reversal of 545552005 is 500255545.

It can be written as a sum of positive squares in 4 ways, for example, as 141300769 + 404251236 = 11887^2 + 20106^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 545552005 - 2⁹ = 545551493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545552009) 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 7 ways as a sum of consecutive naturals, for example, 539646 + ... + 540655.

It is an arithmetic number, because the mean of its divisors is an integer number (82643103).

Almost surely, 2^545552005 is an apocalyptic number.

It is an amenable number.

545552005 is a deficient number, since it is larger than the sum of its proper divisors (115592819).

545552005 is a wasteful number, since it uses less digits than its factorization.

545552005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080407.

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 545552005 is about 23357.0547158669. The cubic root of 545552005 is about 817.1066005814.

The spelling of 545552005 in words is "five hundred forty-five million, five hundred fifty-two thousand, five".