42424559 has 6 divisors (see below), whose sum is σ = 43077816. Its totient is φ = 41772920.

The previous prime is 42424519. The next prime is 42424561. The reversal of 42424559 is 95542424.

It is a de Polignac number, because none of the positive numbers 2^k-42424559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42424519) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54497 + ... + 55269.

It is an arithmetic number, because the mean of its divisors is an integer number (7179636).

Almost surely, 2^42424559 is an apocalyptic number.

42424559 is a deficient number, since it is larger than the sum of its proper divisors (653257).

42424559 is an frugal number, since it uses more digits than its factorization.

42424559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617 (or 844 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 42424559 is about 6513.4137746653. The cubic root of 42424559 is about 348.7699926446.

The spelling of 42424559 in words is "forty-two million, four hundred twenty-four thousand, five hundred fifty-nine".