55667798 has 16 divisors (see below), whose sum is σ = 85268160. Its totient is φ = 27249096.

The previous prime is 55667771. The next prime is 55667813. The reversal of 55667798 is 89776655.

It is a happy number.

55667798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 32561 + ... + 34227.

It is an arithmetic number, because the mean of its divisors is an integer number (5329260).

Almost surely, 2^55667798 is an apocalyptic number.

55667798 is a deficient number, since it is larger than the sum of its proper divisors (29600362).

55667798 is a wasteful number, since it uses less digits than its factorization.

55667798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011.

The product of its digits is 3175200, while the sum is 53.

The square root of 55667798 is about 7461.0855778499. The cubic root of 55667798 is about 381.8282123696.

It can be divided in two parts, 55667 and 798, that added together give a palindrome (56465).

The spelling of 55667798 in words is "fifty-five million, six hundred sixty-seven thousand, seven hundred ninety-eight".