42113563 has 4 divisors (see below), whose sum is σ = 42357168. Its totient is φ = 41869960.

The previous prime is 42113549. The next prime is 42113569. The reversal of 42113563 is 36531124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42113563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42113569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121543 + ... + 121888.

It is an arithmetic number, because the mean of its divisors is an integer number (10589292).

Almost surely, 2^42113563 is an apocalyptic number.

42113563 is a deficient number, since it is larger than the sum of its proper divisors (243605).

42113563 is a wasteful number, since it uses less digits than its factorization.

42113563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243604.

The product of its digits is 2160, while the sum is 25.

The square root of 42113563 is about 6489.4963595028. The cubic root of 42113563 is about 347.9156746184.

Adding to 42113563 its reverse (36531124), we get a palindrome (78644687).

The spelling of 42113563 in words is "forty-two million, one hundred thirteen thousand, five hundred sixty-three".