42224125 has 8 divisors (see below), whose sum is σ = 52695864. Its totient is φ = 33779200.

The previous prime is 42224111. The next prime is 42224167. The reversal of 42224125 is 52142224.

42224125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 121 + 42224004 = 11^2 + 6498^2 .

It is not a de Polignac number, because 42224125 - 2⁷ = 42223997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42224096 and 42224105.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 168772 + ... + 169021.

It is an arithmetic number, because the mean of its divisors is an integer number (6586983).

Almost surely, 2^42224125 is an apocalyptic number.

It is an amenable number.

42224125 is a deficient number, since it is larger than the sum of its proper divisors (10471739).

42224125 is an equidigital number, since it uses as much as digits as its factorization.

42224125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337808 (or 337798 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 42224125 is about 6498.0093105504. The cubic root of 42224125 is about 348.2198730515.

Adding to 42224125 its reverse (52142224), we get a palindrome (94366349).

The spelling of 42224125 in words is "forty-two million, two hundred twenty-four thousand, one hundred twenty-five".