225411005 has 4 divisors (see below), whose sum is σ = 270493212. Its totient is φ = 180328800.

The previous prime is 225411001. The next prime is 225411037. The reversal of 225411005 is 500114522.

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 153313924 + 72097081 = 12382^2 + 8491^2 .

It is not a de Polignac number, because 225411005 - 2² = 225411001 is a prime.

It is a super-2 number, since 2×225411005² = 101620242350220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225411001) 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, 22541096 + ... + 22541105.

It is an arithmetic number, because the mean of its divisors is an integer number (67623303).

Almost surely, 2^225411005 is an apocalyptic number.

It is an amenable number.

225411005 is a deficient number, since it is larger than the sum of its proper divisors (45082207).

225411005 is an equidigital number, since it uses as much as digits as its factorization.

225411005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45082206.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 225411005 is about 15013.6939158889. The cubic root of 225411005 is about 608.5903173123.

Adding to 225411005 its reverse (500114522), we get a palindrome (725525527).

The spelling of 225411005 in words is "two hundred twenty-five million, four hundred eleven thousand, five".