545550605 has 16 divisors (see below), whose sum is σ = 659355120. Its totient is φ = 433324032.

The previous prime is 545550569. The next prime is 545550623. The reversal of 545550605 is 506055545.

It can be written as a sum of positive squares in 8 ways, for example, as 10738729 + 534811876 = 3277^2 + 23126^2 .

It is a cyclic number.

It is not a de Polignac number, because 545550605 - 2²⁰ = 544502029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586781 + ... + 587709.

It is an arithmetic number, because the mean of its divisors is an integer number (41209695).

Almost surely, 2^545550605 is an apocalyptic number.

It is an amenable number.

545550605 is a deficient number, since it is larger than the sum of its proper divisors (113804515).

545550605 is a wasteful number, since it uses less digits than its factorization.

545550605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648.

The product of its (nonzero) digits is 75000, while the sum is 35.

The square root of 545550605 is about 23357.0247463156. The cubic root of 545550605 is about 817.1059016256.

The spelling of 545550605 in words is "five hundred forty-five million, five hundred fifty thousand, six hundred five".