225820316 has 12 divisors (see below), whose sum is σ = 418431888. Its totient is φ = 106268352.

The previous prime is 225820307. The next prime is 225820319. The reversal of 225820316 is 613028522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225820319) 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, 1660376 + ... + 1660511.

It is an arithmetic number, because the mean of its divisors is an integer number (34869324).

Almost surely, 2^225820316 is an apocalyptic number.

It is an amenable number.

225820316 is a deficient number, since it is larger than the sum of its proper divisors (192611572).

225820316 is a wasteful number, since it uses less digits than its factorization.

225820316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320908 (or 3320906 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 225820316 is about 15027.3189890945. The cubic root of 225820316 is about 608.9584627305.

Adding to 225820316 its reverse (613028522), we get a palindrome (838848838).

The spelling of 225820316 in words is "two hundred twenty-five million, eight hundred twenty thousand, three hundred sixteen".