225620353 has 6 divisors (see below), whose sum is σ = 262456386. Its totient is φ = 193388832.

The previous prime is 225620347. The next prime is 225620393. The reversal of 225620353 is 353026522.

It can be written as a sum of positive squares in only one way, i.e., 178944129 + 46676224 = 13377^2 + 6832^2 .

It is not a de Polignac number, because 225620353 - 2⁹ = 225619841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225620323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2302200 + ... + 2302297.

It is an arithmetic number, because the mean of its divisors is an integer number (43742731).

Almost surely, 2^225620353 is an apocalyptic number.

It is an amenable number.

225620353 is a deficient number, since it is larger than the sum of its proper divisors (36836033).

225620353 is an equidigital number, since it uses as much as digits as its factorization.

225620353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604511 (or 4604504 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 225620353 is about 15020.6641996950. The cubic root of 225620353 is about 608.7786662106.

Adding to 225620353 its reverse (353026522), we get a palindrome (578646875).

The spelling of 225620353 in words is "two hundred twenty-five million, six hundred twenty thousand, three hundred fifty-three".