42225371 has 2 divisors, whose sum is σ = 42225372. Its totient is φ = 42225370.

The previous prime is 42225349. The next prime is 42225383. The reversal of 42225371 is 17352224.

42225371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42225371 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42225371.

It is not a weakly prime, because it can be changed into another prime (42225311) 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 as a sum of consecutive naturals, namely, 21112685 + 21112686.

It is an arithmetic number, because the mean of its divisors is an integer number (21112686).

Almost surely, 2^42225371 is an apocalyptic number.

42225371 is a deficient number, since it is larger than the sum of its proper divisors (1).

42225371 is an equidigital number, since it uses as much as digits as its factorization.

42225371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 26.

The square root of 42225371 is about 6498.1051853598. The cubic root of 42225371 is about 348.2232982473.

Adding to 42225371 its reverse (17352224), we get a palindrome (59577595).

The spelling of 42225371 in words is "forty-two million, two hundred twenty-five thousand, three hundred seventy-one".