55816786 has 8 divisors (see below), whose sum is σ = 84034944. Its totient is φ = 27805140.

The previous prime is 55816759. The next prime is 55816799. The reversal of 55816786 is 68761855.

55816786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50950 + ... + 52033.

It is an arithmetic number, because the mean of its divisors is an integer number (10504368).

Almost surely, 2^55816786 is an apocalyptic number.

55816786 is a deficient number, since it is larger than the sum of its proper divisors (28218158).

55816786 is a wasteful number, since it uses less digits than its factorization.

55816786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103256.

The product of its digits is 403200, while the sum is 46.

The square root of 55816786 is about 7471.0632442779. The cubic root of 55816786 is about 382.1685476442.

The spelling of 55816786 in words is "fifty-five million, eight hundred sixteen thousand, seven hundred eighty-six".