225845369 has 4 divisors (see below), whose sum is σ = 225894900. Its totient is φ = 225795840.

The previous prime is 225845353. The next prime is 225845371. The reversal of 225845369 is 963548522.

225845369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 112635769 + 113209600 = 10613^2 + 10640^2 .

It is a cyclic number.

It is not a de Polignac number, because 225845369 - 2⁴ = 225845353 is a prime.

It is a super-2 number, since 2×225845369² = 102012261397492322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225845309) 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, 17144 + ... + 27305.

It is an arithmetic number, because the mean of its divisors is an integer number (56473725).

Almost surely, 2^225845369 is an apocalyptic number.

It is an amenable number.

225845369 is a deficient number, since it is larger than the sum of its proper divisors (49531).

225845369 is an equidigital number, since it uses as much as digits as its factorization.

225845369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49530.

The product of its digits is 518400, while the sum is 44.

The square root of 225845369 is about 15028.1525478017. The cubic root of 225845369 is about 608.9809816259.

It can be divided in two parts, 2258453 and 69, that added together give a palindrome (2258522).

The spelling of 225845369 in words is "two hundred twenty-five million, eight hundred forty-five thousand, three hundred sixty-nine".