225689716 has 48 divisors (see below), whose sum is σ = 468720000. Its totient is φ = 93034368.

The previous prime is 225689669. The next prime is 225689743. The reversal of 225689716 is 617986522.

225689716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404910 + ... + 405466.

It is an arithmetic number, because the mean of its divisors is an integer number (9765000).

Almost surely, 2^225689716 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 225689716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234360000).

225689716 is an abundant number, since it is smaller than the sum of its proper divisors (243030284).

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

225689716 is a wasteful number, since it uses less digits than its factorization.

225689716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096 (or 1094 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 225689716 is about 15022.9729414653. The cubic root of 225689716 is about 608.8410459081.

The spelling of 225689716 in words is "two hundred twenty-five million, six hundred eighty-nine thousand, seven hundred sixteen".