225485 has 8 divisors (see below), whose sum is σ = 291480. Its totient is φ = 166464.

The previous prime is 225479. The next prime is 225493. The reversal of 225485 is 584522.

It can be written as a sum of positive squares in 4 ways, for example, as 7396 + 218089 = 86^2 + 467^2 .

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 225485 - 2¹⁰ = 224461 is a prime.

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225485.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670 + ... + 1799.

It is an arithmetic number, because the mean of its divisors is an integer number (36435).

2²²⁵⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

225485 is a deficient number, since it is larger than the sum of its proper divisors (65995).

225485 is a wasteful number, since it uses less digits than its factorization.

225485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487.

The product of its digits is 3200, while the sum is 26.

The square root of 225485 is about 474.8526087114. The cubic root of 225485 is about 60.8656903404.

The spelling of 225485 in words is "two hundred twenty-five thousand, four hundred eighty-five".