225645416 has 16 divisors (see below), whose sum is σ = 423376800. Its totient is φ = 112744944.

The previous prime is 225645391. The next prime is 225645419. The reversal of 225645416 is 614546522.

225645416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (225645419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3701 + ... + 21563.

It is an arithmetic number, because the mean of its divisors is an integer number (26461050).

Almost surely, 2^225645416 is an apocalyptic number.

It is an amenable number.

225645416 is a deficient number, since it is larger than the sum of its proper divisors (197731384).

225645416 is a wasteful number, since it uses less digits than its factorization.

225645416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19448 (or 19444 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 225645416 is about 15021.4984605398. The cubic root of 225645416 is about 608.8012074022.

The spelling of 225645416 in words is "two hundred twenty-five million, six hundred forty-five thousand, four hundred sixteen".