42225321 has 8 divisors (see below), whose sum is σ = 56626560. Its totient is φ = 27987152.

The previous prime is 42225319. The next prime is 42225329. The reversal of 42225321 is 12352224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42225321 - 2¹ = 42225319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42225329) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 40161 + ... + 41198.

It is an arithmetic number, because the mean of its divisors is an integer number (7078320).

Almost surely, 2^42225321 is an apocalyptic number.

It is an amenable number.

42225321 is a deficient number, since it is larger than the sum of its proper divisors (14401239).

42225321 is a wasteful number, since it uses less digits than its factorization.

42225321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81535.

The product of its digits is 960, while the sum is 21.

The square root of 42225321 is about 6498.1013380833. The cubic root of 42225321 is about 348.2231608009.

Adding to 42225321 its reverse (12352224), we get a palindrome (54577545).

The spelling of 42225321 in words is "forty-two million, two hundred twenty-five thousand, three hundred twenty-one".