225853187 has 4 divisors (see below), whose sum is σ = 258117936. Its totient is φ = 193588440.

The previous prime is 225853183. The next prime is 225853219. The reversal of 225853187 is 781358522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225853187 - 2² = 225853183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225853183) 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, 16132364 + ... + 16132377.

It is an arithmetic number, because the mean of its divisors is an integer number (64529484).

Almost surely, 2^225853187 is an apocalyptic number.

225853187 is a deficient number, since it is larger than the sum of its proper divisors (32264749).

225853187 is an equidigital number, since it uses as much as digits as its factorization.

225853187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32264748.

The product of its digits is 134400, while the sum is 41.

The square root of 225853187 is about 15028.4126573634. The cubic root of 225853187 is about 608.9880084962.

The spelling of 225853187 in words is "two hundred twenty-five million, eight hundred fifty-three thousand, one hundred eighty-seven".