225817516 has 24 divisors (see below), whose sum is σ = 416618496. Its totient is φ = 106938960.

The previous prime is 225817513. The next prime is 225817523. The reversal of 225817516 is 615718522.

225817516 is digitally balanced in base 3, 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 (225817513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13546 + ... + 25201.

It is an arithmetic number, because the mean of its divisors is an integer number (17359104).

Almost surely, 2^225817516 is an apocalyptic number.

It is an amenable number.

225817516 is a deficient number, since it is larger than the sum of its proper divisors (190800980).

225817516 is a wasteful number, since it uses less digits than its factorization.

225817516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38829 (or 38827 counting only the distinct ones).

The product of its digits is 33600, while the sum is 37.

The square root of 225817516 is about 15027.2258251482. The cubic root of 225817516 is about 608.9559458463.

The spelling of 225817516 in words is "two hundred twenty-five million, eight hundred seventeen thousand, five hundred sixteen".