225785 has 8 divisors (see below), whose sum is σ = 309696. Its totient is φ = 154800.

The previous prime is 225781. The next prime is 225809. The reversal of 225785 is 587522.

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

It is not a de Polignac number, because 225785 - 2² = 225781 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (225781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3191 + ... + 3260.

It is an arithmetic number, because the mean of its divisors is an integer number (38712).

2²²⁵⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

225785 is a deficient number, since it is larger than the sum of its proper divisors (83911).

225785 is an equidigital number, since it uses as much as digits as its factorization.

225785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6463.

The product of its digits is 5600, while the sum is 29.

The square root of 225785 is about 475.1683912046. The cubic root of 225785 is about 60.8926716106.

The spelling of 225785 in words is "two hundred twenty-five thousand, seven hundred eighty-five".