55680847 has 4 divisors (see below), whose sum is σ = 55774096. Its totient is φ = 55587600.

The previous prime is 55680839. The next prime is 55680857. The reversal of 55680847 is 74808655.

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

It is a cyclic number.

It is not a de Polignac number, because 55680847 - 2³ = 55680839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55680817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45723 + ... + 46924.

It is an arithmetic number, because the mean of its divisors is an integer number (13943524).

Almost surely, 2^55680847 is an apocalyptic number.

55680847 is a deficient number, since it is larger than the sum of its proper divisors (93249).

55680847 is an equidigital number, since it uses as much as digits as its factorization.

55680847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93248.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 55680847 is about 7461.9599972125. The cubic root of 55680847 is about 381.8580446201.

The spelling of 55680847 in words is "fifty-five million, six hundred eighty thousand, eight hundred forty-seven".