42326563 has 4 divisors (see below), whose sum is σ = 43691968. Its totient is φ = 40961160.

The previous prime is 42326551. The next prime is 42326569. The reversal of 42326563 is 36562324.

It is a happy number.

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-42326563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1365373 = 42326563 / (4 + 2 + 3 + 2 + 6 + 5 + 6 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42326569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682656 + ... + 682717.

It is an arithmetic number, because the mean of its divisors is an integer number (10922992).

Almost surely, 2^42326563 is an apocalyptic number.

42326563 is a deficient number, since it is larger than the sum of its proper divisors (1365405).

42326563 is a wasteful number, since it uses less digits than its factorization.

42326563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365404.

The product of its digits is 25920, while the sum is 31.

The square root of 42326563 is about 6505.8867958181. The cubic root of 42326563 is about 348.5012456840.

Adding to 42326563 its reverse (36562324), we get a palindrome (78888887).

The spelling of 42326563 in words is "forty-two million, three hundred twenty-six thousand, five hundred sixty-three".