225051305 has 4 divisors (see below), whose sum is σ = 270061572. Its totient is φ = 180041040.

The previous prime is 225051301. The next prime is 225051313. The reversal of 225051305 is 503150522.

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 92525161 + 132526144 = 9619^2 + 11512^2 .

It is not a de Polignac number, because 225051305 - 2² = 225051301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225051301) 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, 22505126 + ... + 22505135.

It is an arithmetic number, because the mean of its divisors is an integer number (67515393).

Almost surely, 2^225051305 is an apocalyptic number.

It is an amenable number.

225051305 is a deficient number, since it is larger than the sum of its proper divisors (45010267).

225051305 is an equidigital number, since it uses as much as digits as its factorization.

225051305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45010266.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 225051305 is about 15001.7100691888. The cubic root of 225051305 is about 608.2664252845.

The spelling of 225051305 in words is "two hundred twenty-five million, fifty-one thousand, three hundred five".