53855889 has 4 divisors (see below), whose sum is σ = 71807856. Its totient is φ = 35903924.

The previous prime is 53855887. The next prime is 53855891. The reversal of 53855889 is 98855835.

53855889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (53855887) and next prime (53855891).

It is a cyclic number.

It is not a de Polignac number, because 53855889 - 2¹ = 53855887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53855887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8975979 + ... + 8975984.

It is an arithmetic number, because the mean of its divisors is an integer number (17951964).

Almost surely, 2^53855889 is an apocalyptic number.

It is an amenable number.

53855889 is a deficient number, since it is larger than the sum of its proper divisors (17951967).

53855889 is a wasteful number, since it uses less digits than its factorization.

53855889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17951966.

The product of its digits is 1728000, while the sum is 51.

The square root of 53855889 is about 7338.6571659943. The cubic root of 53855889 is about 377.6397774853.

The spelling of 53855889 in words is "fifty-three million, eight hundred fifty-five thousand, eight hundred eighty-nine".