225601273 has 4 divisors (see below), whose sum is σ = 235410048. Its totient is φ = 215792500.

The previous prime is 225601253. The next prime is 225601279. The reversal of 225601273 is 372106522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225601273 - 2²¹ = 223504121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225601279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4904353 + ... + 4904398.

It is an arithmetic number, because the mean of its divisors is an integer number (58852512).

Almost surely, 2^225601273 is an apocalyptic number.

225601273 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

225601273 is a deficient number, since it is larger than the sum of its proper divisors (9808775).

225601273 is an equidigital number, since it uses as much as digits as its factorization.

225601273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9808774.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 225601273 is about 15020.0290612236. The cubic root of 225601273 is about 608.7615048978.

Adding to 225601273 its reverse (372106522), we get a palindrome (597707795).

The spelling of 225601273 in words is "two hundred twenty-five million, six hundred one thousand, two hundred seventy-three".