225459810 has 24 divisors (see below), whose sum is σ = 586195740. Its totient is φ = 60122592.

The previous prime is 225459803. The next prime is 225459811. The reversal of 225459810 is 18954522.

225459810 is a `hidden beast` number, since 2 + 2 + 54 + 598 + 10 = 666.

225459810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 221503689 + 3956121 = 14883^2 + 1989^2 .

It is a super-2 number, since 2×225459810² = 101664251850472200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225459811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1252465 + ... + 1252644.

Almost surely, 2^225459810 is an apocalyptic number.

225459810 is an abundant number, since it is smaller than the sum of its proper divisors (360735930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225459810 is a wasteful number, since it uses less digits than its factorization.

225459810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505122 (or 2505119 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 225459810 is about 15015.3191774268. The cubic root of 225459810 is about 608.6342372428.

The spelling of 225459810 in words is "two hundred twenty-five million, four hundred fifty-nine thousand, eight hundred ten".