545225885 has 4 divisors (see below), whose sum is σ = 654271068. Its totient is φ = 436180704.

The previous prime is 545225873. The next prime is 545225909. The reversal of 545225885 is 588522545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107453956 + 437771929 = 10366^2 + 20923^2 .

It is a cyclic number.

It is not a de Polignac number, because 545225885 - 2¹⁰ = 545224861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54522584 + ... + 54522593.

It is an arithmetic number, because the mean of its divisors is an integer number (163567767).

Almost surely, 2^545225885 is an apocalyptic number.

It is an amenable number.

545225885 is a deficient number, since it is larger than the sum of its proper divisors (109045183).

545225885 is a wasteful number, since it uses less digits than its factorization.

545225885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109045182.

The product of its digits is 640000, while the sum is 44.

The square root of 545225885 is about 23350.0724838275. The cubic root of 545225885 is about 816.9437515053.

The spelling of 545225885 in words is "five hundred forty-five million, two hundred twenty-five thousand, eight hundred eighty-five".