225210005 has 4 divisors (see below), whose sum is σ = 270252012. Its totient is φ = 180168000.

The previous prime is 225209927. The next prime is 225210019. The reversal of 225210005 is 500012522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500012522 = 2 ⋅250006261.

It can be written as a sum of positive squares in 2 ways, for example, as 55011889 + 170198116 = 7417^2 + 13046^2 .

It is a de Polignac number, because none of the positive numbers 2^k-225210005 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, 22520996 + ... + 22521005.

It is an arithmetic number, because the mean of its divisors is an integer number (67563003).

Almost surely, 2^225210005 is an apocalyptic number.

It is an amenable number.

225210005 is a deficient number, since it is larger than the sum of its proper divisors (45042007).

225210005 is an equidigital number, since it uses as much as digits as its factorization.

225210005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45042006.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 225210005 is about 15006.9985340174. The cubic root of 225210005 is about 608.4093692828.

Adding to 225210005 its reverse (500012522), we get a palindrome (725222527).

The spelling of 225210005 in words is "two hundred twenty-five million, two hundred ten thousand, five".