42256563 has 4 divisors (see below), whose sum is σ = 56342088. Its totient is φ = 28171040.

The previous prime is 42256559. The next prime is 42256579. The reversal of 42256563 is 36565224.

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

It is a cyclic number.

It is not a de Polignac number, because 42256563 - 2² = 42256559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42256523) 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, 7042758 + ... + 7042763.

It is an arithmetic number, because the mean of its divisors is an integer number (14085522).

Almost surely, 2^42256563 is an apocalyptic number.

42256563 is a deficient number, since it is larger than the sum of its proper divisors (14085525).

42256563 is a wasteful number, since it uses less digits than its factorization.

42256563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14085524.

The product of its digits is 43200, while the sum is 33.

The square root of 42256563 is about 6500.5048265500. The cubic root of 42256563 is about 348.3090216518.

The spelling of 42256563 in words is "forty-two million, two hundred fifty-six thousand, five hundred sixty-three".