220315325 has 12 divisors (see below), whose sum is σ = 289261620. Its totient is φ = 165884160.

The previous prime is 220315313. The next prime is 220315331. The reversal of 220315325 is 523513022.

It can be written as a sum of positive squares in 6 ways, for example, as 17480761 + 202834564 = 4181^2 + 14242^2 .

It is not a de Polignac number, because 220315325 - 2¹⁰ = 220314301 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 220315325.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 258770 + ... + 259619.

It is an arithmetic number, because the mean of its divisors is an integer number (24105135).

Almost surely, 2^220315325 is an apocalyptic number.

220315325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220315325 is a deficient number, since it is larger than the sum of its proper divisors (68946295).

220315325 is a wasteful number, since it uses less digits than its factorization.

220315325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518416 (or 518411 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 220315325 is about 14843.0227716594. The cubic root of 220315325 is about 603.9693537731.

Adding to 220315325 its reverse (523513022), we get a palindrome (743828347).

The spelling of 220315325 in words is "two hundred twenty million, three hundred fifteen thousand, three hundred twenty-five".