225013585 has 4 divisors (see below), whose sum is σ = 270016308. Its totient is φ = 180010864.

The previous prime is 225013559. The next prime is 225013609. The reversal of 225013585 is 585310522.

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 127418944 + 97594641 = 11288^2 + 9879^2 .

It is a cyclic number.

It is not a de Polignac number, because 225013585 - 2⁵ = 225013553 is a prime.

It is a super-2 number, since 2×225013585² = 101262226869104450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 22501354 + ... + 22501363.

It is an arithmetic number, because the mean of its divisors is an integer number (67504077).

Almost surely, 2^225013585 is an apocalyptic number.

It is an amenable number.

225013585 is a deficient number, since it is larger than the sum of its proper divisors (45002723).

225013585 is an equidigital number, since it uses as much as digits as its factorization.

225013585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45002722.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 225013585 is about 15000.4528264983. The cubic root of 225013585 is about 608.2324403057.

The spelling of 225013585 in words is "two hundred twenty-five million, thirteen thousand, five hundred eighty-five".