225548840 has 48 divisors (see below), whose sum is σ = 557825940. Its totient is φ = 82016000.

The previous prime is 225548837. The next prime is 225548881. The reversal of 225548840 is 48845522.

225548840 is digitally balanced in base 3, 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 206381956 + 19166884 = 14366^2 + 4378^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225548794 and 225548803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18461 + ... + 28140.

Almost surely, 2^225548840 is an apocalyptic number.

225548840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225548840 is an abundant number, since it is smaller than the sum of its proper divisors (332277100).

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

225548840 is a wasteful number, since it uses less digits than its factorization.

225548840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46634 (or 46619 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 38.

The square root of 225548840 is about 15018.2835237586. The cubic root of 225548840 is about 608.7143395830.

The spelling of 225548840 in words is "two hundred twenty-five million, five hundred forty-eight thousand, eight hundred forty".