226540225 has 24 divisors (see below), whose sum is σ = 294088320. Its totient is φ = 172782720.

The previous prime is 226540201. The next prime is 226540231. The reversal of 226540225 is 522045622.

It is not a de Polignac number, because 226540225 - 2¹¹ = 226538177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 226540193 and 226540202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279621 + ... + 280429.

It is an arithmetic number, because the mean of its divisors is an integer number (12253680).

Almost surely, 2^226540225 is an apocalyptic number.

226540225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

226540225 is a deficient number, since it is larger than the sum of its proper divisors (67548095).

226540225 is a wasteful number, since it uses less digits than its factorization.

226540225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 226540225 is about 15051.2532700769. The cubic root of 226540225 is about 609.6048906009.

Adding to 226540225 its reverse (522045622), we get a palindrome (748585847).

The spelling of 226540225 in words is "two hundred twenty-six million, five hundred forty thousand, two hundred twenty-five".