55239585 has 8 divisors (see below), whose sum is σ = 88383360. Its totient is φ = 29461104.

The previous prime is 55239529. The next prime is 55239607. The reversal of 55239585 is 58593255.

55239585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55239585 - 2¹⁵ = 55206817 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1841305 + ... + 1841334.

It is an arithmetic number, because the mean of its divisors is an integer number (11047920).

Almost surely, 2^55239585 is an apocalyptic number.

It is an amenable number.

55239585 is a deficient number, since it is larger than the sum of its proper divisors (33143775).

55239585 is a wasteful number, since it uses less digits than its factorization.

55239585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682647.

The product of its digits is 270000, while the sum is 42.

The square root of 55239585 is about 7432.3337519248. Note that the first 3 decimals coincide. The cubic root of 55239585 is about 380.8466464209.

The spelling of 55239585 in words is "fifty-five million, two hundred thirty-nine thousand, five hundred eighty-five".