42635563 has 8 divisors (see below), whose sum is σ = 45047120. Its totient is φ = 40240800.

The previous prime is 42635557. The next prime is 42635573. The reversal of 42635563 is 36553624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42635563 - 2¹³ = 42627371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42635513) 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 7 ways as a sum of consecutive naturals, for example, 1213 + ... + 9313.

It is an arithmetic number, because the mean of its divisors is an integer number (5630890).

Almost surely, 2^42635563 is an apocalyptic number.

42635563 is a deficient number, since it is larger than the sum of its proper divisors (2411557).

42635563 is a wasteful number, since it uses less digits than its factorization.

42635563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8397.

The product of its digits is 64800, while the sum is 34.

The square root of 42635563 is about 6529.5913348387. The cubic root of 42635563 is about 349.3472541418.

The spelling of 42635563 in words is "forty-two million, six hundred thirty-five thousand, five hundred sixty-three".