194855563 has 24 divisors (see below), whose sum is σ = 235551456. Its totient is φ = 157872000.

The previous prime is 194855543. The next prime is 194855569. The reversal of 194855563 is 365558491.

194855563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 194855563 - 2²¹ = 192758411 is a prime.

Its product of digits (648000) is a multiple of the sum of its prime factors (675).

It is not an unprimeable number, because it can be changed into a prime (194855569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 373743 + ... + 374263.

It is an arithmetic number, because the mean of its divisors is an integer number (9814644).

Almost surely, 2^194855563 is an apocalyptic number.

194855563 is a deficient number, since it is larger than the sum of its proper divisors (40695893).

194855563 is a wasteful number, since it uses less digits than its factorization.

194855563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 652 counting only the distinct ones).

The product of its digits is 648000, while the sum is 46.

The square root of 194855563 is about 13959.0674115429. The cubic root of 194855563 is about 579.7457893106.

The spelling of 194855563 in words is "one hundred ninety-four million, eight hundred fifty-five thousand, five hundred sixty-three".