225085447 has 6 divisors (see below), whose sum is σ = 225824928. Its totient is φ = 224348292.

The previous prime is 225085411. The next prime is 225085463. The reversal of 225085447 is 744580522.

It is a happy number.

It is not a de Polignac number, because 225085447 - 2²⁷ = 90867719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225085247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142858 + ... + 144424.

It is an arithmetic number, because the mean of its divisors is an integer number (37637488).

Almost surely, 2^225085447 is an apocalyptic number.

225085447 is a deficient number, since it is larger than the sum of its proper divisors (739481).

225085447 is an frugal number, since it uses more digits than its factorization.

225085447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 225085447 is about 15002.8479629702. The cubic root of 225085447 is about 608.2971832817.

The spelling of 225085447 in words is "two hundred twenty-five million, eighty-five thousand, four hundred forty-seven".