42225523 has 2 divisors, whose sum is σ = 42225524. Its totient is φ = 42225522.

The previous prime is 42225511. The next prime is 42225529. The reversal of 42225523 is 32552224.

It is a happy number.

42225523 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 not a de Polignac number, because 42225523 - 2²¹ = 40128371 is a prime.

It is not a weakly prime, because it can be changed into another prime (42225529) 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, 21112761 + 21112762.

It is an arithmetic number, because the mean of its divisors is an integer number (21112762).

Almost surely, 2^42225523 is an apocalyptic number.

42225523 is a deficient number, since it is larger than the sum of its proper divisors (1).

42225523 is an equidigital number, since it uses as much as digits as its factorization.

42225523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 25.

The square root of 42225523 is about 6498.1168810664. The cubic root of 42225523 is about 348.2237160836.

Adding to 42225523 its reverse (32552224), we get a palindrome (74777747).

The spelling of 42225523 in words is "forty-two million, two hundred twenty-five thousand, five hundred twenty-three".