56505183 has 24 divisors (see below), whose sum is σ = 92257920. Its totient is φ = 30587760.

The previous prime is 56505151. The next prime is 56505199. The reversal of 56505183 is 38150565.

It is not a de Polignac number, because 56505183 - 2⁵ = 56505151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56505103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7323 + ... + 12908.

It is an arithmetic number, because the mean of its divisors is an integer number (3844080).

Almost surely, 2^56505183 is an apocalyptic number.

56505183 is a deficient number, since it is larger than the sum of its proper divisors (35752737).

56505183 is a wasteful number, since it uses less digits than its factorization.

56505183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20267 (or 20260 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 56505183 is about 7516.9929493116. The cubic root of 56505183 is about 383.7332470838.

The spelling of 56505183 in words is "fifty-six million, five hundred five thousand, one hundred eighty-three".