55666798 has 8 divisors (see below), whose sum is σ = 91091160. Its totient is φ = 25303080.

The previous prime is 55666771. The next prime is 55666813. The reversal of 55666798 is 89766655.

55666798 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 a congruent number.

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, 1265133 + ... + 1265176.

It is an arithmetic number, because the mean of its divisors is an integer number (11386395).

Almost surely, 2^55666798 is an apocalyptic number.

55666798 is a deficient number, since it is larger than the sum of its proper divisors (35424362).

55666798 is a wasteful number, since it uses less digits than its factorization.

55666798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530322.

The product of its digits is 2721600, while the sum is 52.

The square root of 55666798 is about 7461.0185631722. The cubic root of 55666798 is about 381.8259260059.

The spelling of 55666798 in words is "fifty-five million, six hundred sixty-six thousand, seven hundred ninety-eight".