55667229 has 8 divisors (see below), whose sum is σ = 74353920. Its totient is φ = 37046016.

The previous prime is 55667219. The next prime is 55667239. The reversal of 55667229 is 92276655.

55667229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55667219) and next prime (55667239).

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

It is not a de Polignac number, because 55667229 - 2⁹ = 55666717 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55667219) by changing a digit.

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, 14349 + ... + 17810.

It is an arithmetic number, because the mean of its divisors is an integer number (9294240).

Almost surely, 2^55667229 is an apocalyptic number.

It is an amenable number.

55667229 is a deficient number, since it is larger than the sum of its proper divisors (18686691).

55667229 is a wasteful number, since it uses less digits than its factorization.

55667229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32739.

The product of its digits is 226800, while the sum is 42.

The square root of 55667229 is about 7461.0474465721. The cubic root of 55667229 is about 381.8269114320.

The spelling of 55667229 in words is "fifty-five million, six hundred sixty-seven thousand, two hundred twenty-nine".