220722325 has 12 divisors (see below), whose sum is σ = 282525568. Its totient is φ = 170881200.

The previous prime is 220722323. The next prime is 220722343. The reversal of 220722325 is 523227022.

It is a happy number.

It is not a de Polignac number, because 220722325 - 2¹ = 220722323 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 220722325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220722323) 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, 141627 + ... + 143176.

Almost surely, 2^220722325 is an apocalyptic number.

220722325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220722325 is a deficient number, since it is larger than the sum of its proper divisors (61803243).

220722325 is a wasteful number, since it uses less digits than its factorization.

220722325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284844 (or 284839 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 220722325 is about 14856.7265910092. The cubic root of 220722325 is about 604.3410396932.

Adding to 220722325 its reverse (523227022), we get a palindrome (743949347).

The spelling of 220722325 in words is "two hundred twenty million, seven hundred twenty-two thousand, three hundred twenty-five".