225839269 has 4 divisors (see below), whose sum is σ = 233626860. Its totient is φ = 218051680.

The previous prime is 225839209. The next prime is 225839279. The reversal of 225839269 is 962938522.

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 92736900 + 133102369 = 9630^2 + 11537^2 .

It is a cyclic number.

It is not a de Polignac number, because 225839269 - 2²³ = 217450661 is a prime.

It is a super-2 number, since 2×225839269² = 102006750844908722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225839209) 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 3 ways as a sum of consecutive naturals, for example, 3893752 + ... + 3893809.

It is an arithmetic number, because the mean of its divisors is an integer number (58406715).

Almost surely, 2^225839269 is an apocalyptic number.

225839269 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

225839269 is a deficient number, since it is larger than the sum of its proper divisors (7787591).

225839269 is an equidigital number, since it uses as much as digits as its factorization.

225839269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7787590.

The product of its digits is 466560, while the sum is 46.

The square root of 225839269 is about 15027.9495940065. The cubic root of 225839269 is about 608.9754987927.

The spelling of 225839269 in words is "two hundred twenty-five million, eight hundred thirty-nine thousand, two hundred sixty-nine".