53855983 has 4 divisors (see below), whose sum is σ = 57024000. Its totient is φ = 50687968.

The previous prime is 53855981. The next prime is 53855993. The reversal of 53855983 is 38955835.

It is a happy number.

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 53855983 - 2¹ = 53855981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53855981) 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 3 ways as a sum of consecutive naturals, for example, 1583983 + ... + 1584016.

It is an arithmetic number, because the mean of its divisors is an integer number (14256000).

Almost surely, 2^53855983 is an apocalyptic number.

53855983 is a deficient number, since it is larger than the sum of its proper divisors (3168017).

53855983 is a wasteful number, since it uses less digits than its factorization.

53855983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168016.

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

The square root of 53855983 is about 7338.6635704330. The cubic root of 53855983 is about 377.6399971958.

The spelling of 53855983 in words is "fifty-three million, eight hundred fifty-five thousand, nine hundred eighty-three".