42225423 has 4 divisors (see below), whose sum is σ = 56300568. Its totient is φ = 28150280.

The previous prime is 42225413. The next prime is 42225457. The reversal of 42225423 is 32452224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42225423 - 2¹⁸ = 41963279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42225393 and 42225402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42225413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7037568 + ... + 7037573.

It is an arithmetic number, because the mean of its divisors is an integer number (14075142).

Almost surely, 2^42225423 is an apocalyptic number.

42225423 is a deficient number, since it is larger than the sum of its proper divisors (14075145).

42225423 is a wasteful number, since it uses less digits than its factorization.

42225423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14075144.

The product of its digits is 3840, while the sum is 24.

The square root of 42225423 is about 6498.1091865250. The cubic root of 42225423 is about 348.2234411914.

Adding to 42225423 its reverse (32452224), we get a palindrome (74677647).

The spelling of 42225423 in words is "forty-two million, two hundred twenty-five thousand, four hundred twenty-three".