225012005 has 4 divisors (see below), whose sum is σ = 270014412. Its totient is φ = 180009600.

The previous prime is 225012001. The next prime is 225012031. The reversal of 225012005 is 500210522.

225012005 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 143976001 + 81036004 = 11999^2 + 9002^2 .

It is not a de Polignac number, because 225012005 - 2² = 225012001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225012001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22501196 + ... + 22501205.

It is an arithmetic number, because the mean of its divisors is an integer number (67503603).

Almost surely, 2^225012005 is an apocalyptic number.

It is an amenable number.

225012005 is a deficient number, since it is larger than the sum of its proper divisors (45002407).

225012005 is an equidigital number, since it uses as much as digits as its factorization.

225012005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45002406.

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

The square root of 225012005 is about 15000.4001613290. The cubic root of 225012005 is about 608.2310166738.

Adding to 225012005 its reverse (500210522), we get a palindrome (725222527).

The spelling of 225012005 in words is "two hundred twenty-five million, twelve thousand, five".