225317616 has 40 divisors (see below), whose sum is σ = 584855424. Its totient is φ = 74746560.

The previous prime is 225317611. The next prime is 225317621. The reversal of 225317616 is 616713522.

225317616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (225317611) and next prime (225317621).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225317611) 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, 996 + ... + 21251.

Almost surely, 2^225317616 is an apocalyptic number.

It is an amenable number.

225317616 is an abundant number, since it is smaller than the sum of its proper divisors (359537808).

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

225317616 is a wasteful number, since it uses less digits than its factorization.

225317616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22469 (or 22463 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 225317616 is about 15010.5834663413. The cubic root of 225317616 is about 608.5062582811.

The spelling of 225317616 in words is "two hundred twenty-five million, three hundred seventeen thousand, six hundred sixteen".