42558423 has 16 divisors (see below), whose sum is σ = 60144000. Its totient is φ = 26693280.

The previous prime is 42558409. The next prime is 42558437. The reversal of 42558423 is 32485524.

It is an interprime number because it is at equal distance from previous prime (42558409) and next prime (42558437).

It is not a de Polignac number, because 42558423 - 2¹⁰ = 42557399 is a prime.

It is a super-2 number, since 2×42558423² = 3622438736493858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42558403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5988 + ... + 10998.

It is an arithmetic number, because the mean of its divisors is an integer number (3759000).

Almost surely, 2^42558423 is an apocalyptic number.

42558423 is a deficient number, since it is larger than the sum of its proper divisors (17585577).

42558423 is a wasteful number, since it uses less digits than its factorization.

42558423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182.

The product of its digits is 38400, while the sum is 33.

The square root of 42558423 is about 6523.6817059081. The cubic root of 42558423 is about 349.1364370503.

The spelling of 42558423 in words is "forty-two million, five hundred fifty-eight thousand, four hundred twenty-three".