225261005 has 8 divisors (see below), whose sum is σ = 270853632. Its totient is φ = 179848528.

The previous prime is 225260969. The next prime is 225261019. The reversal of 225261005 is 500162522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225261005 - 2¹² = 225256909 is a prime.

It is a super-2 number, since 2×225261005² = 101485040747220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42269 + ... + 47298.

It is an arithmetic number, because the mean of its divisors is an integer number (33856704).

Almost surely, 2^225261005 is an apocalyptic number.

It is an amenable number.

225261005 is a deficient number, since it is larger than the sum of its proper divisors (45592627).

225261005 is an equidigital number, since it uses as much as digits as its factorization.

225261005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90075.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 225261005 is about 15008.6976450324. The cubic root of 225261005 is about 608.4552916592.

The spelling of 225261005 in words is "two hundred twenty-five million, two hundred sixty-one thousand, five".