42563617 has 8 divisors (see below), whose sum is σ = 44029440. Its totient is φ = 41118240.

The previous prime is 42563581. The next prime is 42563671. The reversal of 42563617 is 71636524.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42563617 is a prime.

It is a super-2 number, since 2×42563617² = 3623322984245378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42567617) 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, 817 + ... + 9262.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^42563617 is an apocalyptic number.

It is an amenable number.

42563617 is a deficient number, since it is larger than the sum of its proper divisors (1465823).

42563617 is a wasteful number, since it uses less digits than its factorization.

42563617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10223.

The product of its digits is 30240, while the sum is 34.

The square root of 42563617 is about 6524.0797818543. The cubic root of 42563617 is about 349.1506398078.

The spelling of 42563617 in words is "forty-two million, five hundred sixty-three thousand, six hundred seventeen".