42563217 has 8 divisors (see below), whose sum is σ = 58581760. Its totient is φ = 27460080.

The previous prime is 42563201. The next prime is 42563219. The reversal of 42563217 is 71236524.

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

It is not a de Polignac number, because 42563217 - 2⁴ = 42563201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42563219) 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, 228742 + ... + 228927.

It is an arithmetic number, because the mean of its divisors is an integer number (7322720).

Almost surely, 2^42563217 is an apocalyptic number.

It is an amenable number.

42563217 is a deficient number, since it is larger than the sum of its proper divisors (16018543).

42563217 is a wasteful number, since it uses less digits than its factorization.

42563217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457703.

The product of its digits is 10080, while the sum is 30.

The square root of 42563217 is about 6524.0491261179. The cubic root of 42563217 is about 349.1495460670.

The spelling of 42563217 in words is "forty-two million, five hundred sixty-three thousand, two hundred seventeen".