55688678 has 8 divisors (see below), whose sum is σ = 83898480. Its totient is φ = 27722520.

The previous prime is 55688657. The next prime is 55688683. The reversal of 55688678 is 87688655.

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, 60338 + ... + 61253.

It is an arithmetic number, because the mean of its divisors is an integer number (10487310).

Almost surely, 2^55688678 is an apocalyptic number.

55688678 is a deficient number, since it is larger than the sum of its proper divisors (28209802).

55688678 is a wasteful number, since it uses less digits than its factorization.

55688678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121822.

The product of its digits is 3225600, while the sum is 53.

The square root of 55688678 is about 7462.4847068520. The cubic root of 55688678 is about 381.8759453905.

The spelling of 55688678 in words is "fifty-five million, six hundred eighty-eight thousand, six hundred seventy-eight".