105559663 has 4 divisors (see below), whose sum is σ = 115156008. Its totient is φ = 95963320.

The previous prime is 105559661. The next prime is 105559667. The reversal of 105559663 is 366955501.

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 105559663 - 2¹ = 105559661 is a prime.

It is a super-2 number, since 2×105559663² = 22285684905347138, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105559661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4798156 + ... + 4798177.

It is an arithmetic number, because the mean of its divisors is an integer number (28789002).

Almost surely, 2^105559663 is an apocalyptic number.

105559663 is a deficient number, since it is larger than the sum of its proper divisors (9596345).

105559663 is an equidigital number, since it uses as much as digits as its factorization.

105559663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9596344.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 105559663 is about 10274.2232309796. The cubic root of 105559663 is about 472.6061096294.

The spelling of 105559663 in words is "one hundred five million, five hundred fifty-nine thousand, six hundred sixty-three".