55668686 has 8 divisors (see below), whose sum is σ = 84679344. Its totient is φ = 27442240.

The previous prime is 55668677. The next prime is 55668721. The reversal of 55668686 is 68686655.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195875 + ... + 196158.

It is an arithmetic number, because the mean of its divisors is an integer number (10584918).

Almost surely, 2^55668686 is an apocalyptic number.

55668686 is a deficient number, since it is larger than the sum of its proper divisors (29010658).

55668686 is a wasteful number, since it uses less digits than its factorization.

55668686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392106.

The product of its digits is 2073600, while the sum is 50.

The square root of 55668686 is about 7461.1450863792. The cubic root of 55668686 is about 381.8302426376.

The spelling of 55668686 in words is "fifty-five million, six hundred sixty-eight thousand, six hundred eighty-six".