225575616 has 84 divisors (see below), whose sum is σ = 694306968. Its totient is φ = 64447488.

The previous prime is 225575593. The next prime is 225575629. The reversal of 225575616 is 616575522.

It is a tau number, because it is divible by the number of its divisors (84).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2581 + ... + 21396.

Almost surely, 2^225575616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225575616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347153484).

225575616 is an abundant number, since it is smaller than the sum of its proper divisors (468731352).

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

225575616 is a wasteful number, since it uses less digits than its factorization.

225575616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24006 (or 23989 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 225575616 is about 15019.1749440507. The cubic root of 225575616 is about 608.7384264434.

The spelling of 225575616 in words is "two hundred twenty-five million, five hundred seventy-five thousand, six hundred sixteen".