225215260 has 12 divisors (see below), whose sum is σ = 472952088. Its totient is φ = 90086096.

The previous prime is 225215239. The next prime is 225215297. The reversal of 225215260 is 62512522.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5630362 + ... + 5630401.

It is an arithmetic number, because the mean of its divisors is an integer number (39412674).

Almost surely, 2^225215260 is an apocalyptic number.

225215260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225215260 is an abundant number, since it is smaller than the sum of its proper divisors (247736828).

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

225215260 is a wasteful number, since it uses less digits than its factorization.

225215260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11260772 (or 11260770 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 225215260 is about 15007.1736179735. The cubic root of 225215260 is about 608.4141014088.

Adding to 225215260 its reverse (62512522), we get a palindrome (287727782).

The spelling of 225215260 in words is "two hundred twenty-five million, two hundred fifteen thousand, two hundred sixty".