42563305 has 8 divisors (see below), whose sum is σ = 51241032. Its totient is φ = 33940608.

The previous prime is 42563303. The next prime is 42563327. The reversal of 42563305 is 50336524.

It can be written as a sum of positive squares in 4 ways, for example, as 729 + 42562576 = 27^2 + 6524^2 .

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 42563305 - 2¹ = 42563303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42563303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12034 + ... + 15163.

It is an arithmetic number, because the mean of its divisors is an integer number (6405129).

Almost surely, 2^42563305 is an apocalyptic number.

It is an amenable number.

42563305 is a deficient number, since it is larger than the sum of its proper divisors (8677727).

42563305 is a wasteful number, since it uses less digits than its factorization.

42563305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27515.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 42563305 is about 6524.0558703923. The cubic root of 42563305 is about 349.1497866906.

Adding to 42563305 its reverse (50336524), we get a palindrome (92899829).

The spelling of 42563305 in words is "forty-two million, five hundred sixty-three thousand, three hundred five".