42425823 has 16 divisors (see below), whose sum is σ = 64394496. Its totient is φ = 24594240.

The previous prime is 42425809. The next prime is 42425827. The reversal of 42425823 is 32852424.

It is not a de Polignac number, because 42425823 - 2⁶ = 42425759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42425827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27190 + ... + 28707.

It is an arithmetic number, because the mean of its divisors is an integer number (4024656).

Almost surely, 2^42425823 is an apocalyptic number.

42425823 is a deficient number, since it is larger than the sum of its proper divisors (21968673).

42425823 is a wasteful number, since it uses less digits than its factorization.

42425823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55934.

The product of its digits is 15360, while the sum is 30.

The square root of 42425823 is about 6513.5108044740. The cubic root of 42425823 is about 348.7734563687.

The spelling of 42425823 in words is "forty-two million, four hundred twenty-five thousand, eight hundred twenty-three".