55021067 has 4 divisors (see below), whose sum is σ = 56191776. Its totient is φ = 53850360.

The previous prime is 55021039. The next prime is 55021069. The reversal of 55021067 is 76012055.

55021067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55021067 - 2¹⁴ = 55004683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55021069) 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 3 ways as a sum of consecutive naturals, for example, 585284 + ... + 585377.

It is an arithmetic number, because the mean of its divisors is an integer number (14047944).

Almost surely, 2^55021067 is an apocalyptic number.

55021067 is a deficient number, since it is larger than the sum of its proper divisors (1170709).

55021067 is a wasteful number, since it uses less digits than its factorization.

55021067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170708.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 55021067 is about 7417.6186879618. The cubic root of 55021067 is about 380.3437955140.

The spelling of 55021067 in words is "fifty-five million, twenty-one thousand, sixty-seven".