55006943 has 4 divisors (see below), whose sum is σ = 55061328. Its totient is φ = 54952560.

The previous prime is 55006921. The next prime is 55006949. The reversal of 55006943 is 34960055.

It is a happy number.

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 55006943 - 2⁸ = 55006687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55006949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25646 + ... + 27707.

It is an arithmetic number, because the mean of its divisors is an integer number (13765332).

Almost surely, 2^55006943 is an apocalyptic number.

55006943 is a deficient number, since it is larger than the sum of its proper divisors (54385).

55006943 is a wasteful number, since it uses less digits than its factorization.

55006943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54384.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 55006943 is about 7416.6665692884. Note that the first 3 decimals coincide. The cubic root of 55006943 is about 380.3112477658.

Adding to 55006943 its reverse (34960055), we get a palindrome (89966998).

The spelling of 55006943 in words is "fifty-five million, six thousand, nine hundred forty-three".