225542585 has 4 divisors (see below), whose sum is σ = 270651108. Its totient is φ = 180434064.

The previous prime is 225542567. The next prime is 225542609. The reversal of 225542585 is 585245522.

It is a happy number.

225542585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 24810361 + 200732224 = 4981^2 + 14168^2 .

It is a cyclic number.

It is not a de Polignac number, because 225542585 - 2²⁰ = 224494009 is a prime.

It is a Duffinian 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, 22554254 + ... + 22554263.

It is an arithmetic number, because the mean of its divisors is an integer number (67662777).

Almost surely, 2^225542585 is an apocalyptic number.

It is an amenable number.

225542585 is a deficient number, since it is larger than the sum of its proper divisors (45108523).

225542585 is an equidigital number, since it uses as much as digits as its factorization.

225542585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45108522.

The product of its digits is 160000, while the sum is 38.

The square root of 225542585 is about 15018.0752761464. The cubic root of 225542585 is about 608.7087125041.

The spelling of 225542585 in words is "two hundred twenty-five million, five hundred forty-two thousand, five hundred eighty-five".