42143563 has 16 divisors (see below), whose sum is σ = 53072640. Its totient is φ = 32508000.

The previous prime is 42143513. The next prime is 42143573. The reversal of 42143563 is 36534124.

It is not a de Polignac number, because 42143563 - 2²¹ = 40046411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42143513) 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, 5068 + ... + 10486.

It is an arithmetic number, because the mean of its divisors is an integer number (3317040).

Almost surely, 2^42143563 is an apocalyptic number.

42143563 is a deficient number, since it is larger than the sum of its proper divisors (10929077).

42143563 is a wasteful number, since it uses less digits than its factorization.

42143563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5538.

The product of its digits is 8640, while the sum is 28.

The square root of 42143563 is about 6491.8073754541. The cubic root of 42143563 is about 347.9982686971.

Adding to 42143563 its reverse (36534124), we get a palindrome (78677687).

It can be divided in two parts, 4214 and 3563, that added together give a palindrome (7777).

The spelling of 42143563 in words is "forty-two million, one hundred forty-three thousand, five hundred sixty-three".