222810325 has 12 divisors (see below), whose sum is σ = 277087300. Its totient is φ = 177730560.

The previous prime is 222810323. The next prime is 222810383. The reversal of 222810325 is 523018222.

It can be written as a sum of positive squares in 6 ways, for example, as 16112196 + 206698129 = 4014^2 + 14377^2 .

It is not a de Polignac number, because 222810325 - 2¹ = 222810323 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 222810325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222810323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4044 + ... + 21493.

Almost surely, 2^222810325 is an apocalyptic number.

222810325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222810325 is a deficient number, since it is larger than the sum of its proper divisors (54276975).

222810325 is a wasteful number, since it uses less digits than its factorization.

222810325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25896 (or 25891 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 222810325 is about 14926.8323833290. The cubic root of 222810325 is about 606.2407204446.

Adding to 222810325 its reverse (523018222), we get a palindrome (745828547).

The spelling of 222810325 in words is "two hundred twenty-two million, eight hundred ten thousand, three hundred twenty-five".