55685853 has 16 divisors (see below), whose sum is σ = 83010240. Its totient is φ = 36893232.

The previous prime is 55685843. The next prime is 55685869. The reversal of 55685853 is 35858655.

55685853 is a `hidden beast` number, since 5 + 5 + 68 + 585 + 3 = 666.

It is not a de Polignac number, because 55685853 - 2⁴ = 55685837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55685799 and 55685808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55685803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1926 + ... + 10727.

It is an arithmetic number, because the mean of its divisors is an integer number (5188140).

Almost surely, 2^55685853 is an apocalyptic number.

It is an amenable number.

55685853 is a deficient number, since it is larger than the sum of its proper divisors (27324387).

55685853 is a wasteful number, since it uses less digits than its factorization.

55685853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12825 (or 12819 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The square root of 55685853 is about 7462.2954243316. The cubic root of 55685853 is about 381.8694879571.

The spelling of 55685853 in words is "fifty-five million, six hundred eighty-five thousand, eight hundred fifty-three".