42325221 has 16 divisors (see below), whose sum is σ = 59230080. Its totient is φ = 26832960.

The previous prime is 42325207. The next prime is 42325249. The reversal of 42325221 is 12252324.

42325221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42325221 - 2¹⁴ = 42308837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42325021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10795 + ... + 14183.

It is an arithmetic number, because the mean of its divisors is an integer number (3701880).

Almost surely, 2^42325221 is an apocalyptic number.

It is an amenable number.

42325221 is a deficient number, since it is larger than the sum of its proper divisors (16904859).

42325221 is a wasteful number, since it uses less digits than its factorization.

42325221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3596.

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

The square root of 42325221 is about 6505.7836576388. The cubic root of 42325221 is about 348.4975624681.

Adding to 42325221 its reverse (12252324), we get a palindrome (54577545).

It can be divided in two parts, 4232 and 5221, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 42325221 in words is "forty-two million, three hundred twenty-five thousand, two hundred twenty-one".