22320325 has 12 divisors (see below), whose sum is σ = 27925668. Its totient is φ = 17696000.

The previous prime is 22320317. The next prime is 22320391. The reversal of 22320325 is 52302322.

It can be written as a sum of positive squares in 6 ways, for example, as 2951524 + 19368801 = 1718^2 + 4401^2 .

It is not a de Polignac number, because 22320325 - 2³ = 22320317 is a prime.

It is a super-3 number, since 3×22320325³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1126 + ... + 6775.

It is an arithmetic number, because the mean of its divisors is an integer number (2327139).

Almost surely, 2^22320325 is an apocalyptic number.

22320325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22320325 is a deficient number, since it is larger than the sum of its proper divisors (5605343).

22320325 is a wasteful number, since it uses less digits than its factorization.

22320325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8024 (or 8019 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 22320325 is about 4724.4391201496. The cubic root of 22320325 is about 281.5573298932.

Adding to 22320325 its reverse (52302322), we get a palindrome (74622647).

The spelling of 22320325 in words is "twenty-two million, three hundred twenty thousand, three hundred twenty-five".