225636769 has 4 divisors (see below), whose sum is σ = 225676480. Its totient is φ = 225597060.

The previous prime is 225636757. The next prime is 225636773. The reversal of 225636769 is 967636522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225636769 - 2⁵ = 225636737 is a prime.

It is a super-2 number, since 2×225636769² = 101823903049518722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225606769) 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, 9549 + ... + 23290.

It is an arithmetic number, because the mean of its divisors is an integer number (56419120).

Almost surely, 2^225636769 is an apocalyptic number.

225636769 is the 8673-rd hex number.

It is an amenable number.

225636769 is a deficient number, since it is larger than the sum of its proper divisors (39711).

225636769 is an equidigital number, since it uses as much as digits as its factorization.

225636769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39710.

The product of its digits is 816480, while the sum is 46.

The square root of 225636769 is about 15021.2106369627. The cubic root of 225636769 is about 608.7934306413.

The spelling of 225636769 in words is "two hundred twenty-five million, six hundred thirty-six thousand, seven hundred sixty-nine".