225225237 has 8 divisors (see below), whose sum is σ = 305223520. Its totient is φ = 147688560.

The previous prime is 225225211. The next prime is 225225293. The reversal of 225225237 is 732522522.

225225237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225225237 - 2⁷ = 225225109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225225437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615187 + ... + 615552.

It is an arithmetic number, because the mean of its divisors is an integer number (38152940).

Almost surely, 2^225225237 is an apocalyptic number.

It is an amenable number.

225225237 is a deficient number, since it is larger than the sum of its proper divisors (79998283).

225225237 is a wasteful number, since it uses less digits than its factorization.

225225237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230803.

The product of its digits is 16800, while the sum is 30.

The square root of 225225237 is about 15007.5060219878. The cubic root of 225225237 is about 608.4230854919.

Adding to 225225237 its reverse (732522522), we get a palindrome (957747759).

The spelling of 225225237 in words is "two hundred twenty-five million, two hundred twenty-five thousand, two hundred thirty-seven".