225155045 has 4 divisors (see below), whose sum is σ = 270186060. Its totient is φ = 180124032.

The previous prime is 225155011. The next prime is 225155059. The reversal of 225155045 is 540551522.

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 172607044 + 52548001 = 13138^2 + 7249^2 .

It is a cyclic number.

It is not a de Polignac number, because 225155045 - 2¹⁸ = 224892901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225154999 and 225155017.

It is a congruent 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, 22515500 + ... + 22515509.

It is an arithmetic number, because the mean of its divisors is an integer number (67546515).

Almost surely, 2^225155045 is an apocalyptic number.

It is an amenable number.

225155045 is a deficient number, since it is larger than the sum of its proper divisors (45031015).

225155045 is an equidigital number, since it uses as much as digits as its factorization.

225155045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45031014.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 225155045 is about 15005.1672766417. The cubic root of 225155045 is about 608.3598734069.

The spelling of 225155045 in words is "two hundred twenty-five million, one hundred fifty-five thousand, forty-five".