55680686 has 4 divisors (see below), whose sum is σ = 83521032. Its totient is φ = 27840342.

The previous prime is 55680683. The next prime is 55680689. The reversal of 55680686 is 68608655.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55680683) and next prime (55680689).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55680683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13920170 + ... + 13920173.

It is an arithmetic number, because the mean of its divisors is an integer number (20880258).

Almost surely, 2^55680686 is an apocalyptic number.

55680686 is a deficient number, since it is larger than the sum of its proper divisors (27840346).

55680686 is a wasteful number, since it uses less digits than its factorization.

55680686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27840345.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 55680686 is about 7461.9492091544. The cubic root of 55680686 is about 381.8576765749.

The spelling of 55680686 in words is "fifty-five million, six hundred eighty thousand, six hundred eighty-six".