55685855 has 8 divisors (see below), whose sum is σ = 66867072. Its totient is φ = 44519328.

The previous prime is 55685843. The next prime is 55685869. The reversal of 55685855 is 55858655.

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

It is a cyclic number.

It is not a de Polignac number, because 55685855 - 2²² = 51491551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8117 + ... + 13313.

It is an arithmetic number, because the mean of its divisors is an integer number (8358384).

Almost surely, 2^55685855 is an apocalyptic number.

55685855 is a deficient number, since it is larger than the sum of its proper divisors (11181217).

55685855 is a wasteful number, since it uses less digits than its factorization.

55685855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7345.

The product of its digits is 1200000, while the sum is 47.

The square root of 55685855 is about 7462.2955583386. The cubic root of 55685855 is about 381.8694925288.

The spelling of 55685855 in words is "fifty-five million, six hundred eighty-five thousand, eight hundred fifty-five".