316222225 has 24 divisors (see below), whose sum is σ = 450283680. Its totient is φ = 217872000.

The previous prime is 316222223. The next prime is 316222229. The reversal of 316222225 is 522222613.

It is a happy number.

It is not a de Polignac number, because 316222225 - 2¹ = 316222223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 316222225.

It is not an unprimeable number, because it can be changed into a prime (316222223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25036 + ... + 35485.

It is an arithmetic number, because the mean of its divisors is an integer number (18761820).

Almost surely, 2^316222225 is an apocalyptic number.

It is an amenable number.

316222225 is a deficient number, since it is larger than the sum of its proper divisors (134061455).

316222225 is a wasteful number, since it uses less digits than its factorization.

316222225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60561 (or 60556 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 316222225 is about 17782.6383025692. The cubic root of 316222225 is about 681.2880897818.

Adding to 316222225 its reverse (522222613), we get a palindrome (838444838).

The spelling of 316222225 in words is "three hundred sixteen million, two hundred twenty-two thousand, two hundred twenty-five".