225896305 has 4 divisors (see below), whose sum is σ = 271075572. Its totient is φ = 180717040.

The previous prime is 225896299. The next prime is 225896371. The reversal of 225896305 is 503698522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503698522 = 2 ⋅251849261.

It can be written as a sum of positive squares in 2 ways, for example, as 43970161 + 181926144 = 6631^2 + 13488^2 .

It is not a de Polignac number, because 225896305 - 2¹¹ = 225894257 is a prime.

It is a super-2 number, since 2×225896305² = 102058281225306050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22589626 + ... + 22589635.

It is an arithmetic number, because the mean of its divisors is an integer number (67768893).

Almost surely, 2^225896305 is an apocalyptic number.

It is an amenable number.

225896305 is a deficient number, since it is larger than the sum of its proper divisors (45179267).

225896305 is an equidigital number, since it uses as much as digits as its factorization.

225896305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45179266.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 225896305 is about 15029.8471382779. The cubic root of 225896305 is about 609.0267603280.

The spelling of 225896305 in words is "two hundred twenty-five million, eight hundred ninety-six thousand, three hundred five".