55493443 has 8 divisors (see below), whose sum is σ = 57582000. Its totient is φ = 53416608.

The previous prime is 55493429. The next prime is 55493447. The reversal of 55493443 is 34439455.

55493443 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 de Polignac number, because none of the positive numbers 2^k-55493443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55493447) 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, 7380 + ... + 12862.

It is an arithmetic number, because the mean of its divisors is an integer number (7197750).

Almost surely, 2^55493443 is an apocalyptic number.

55493443 is a deficient number, since it is larger than the sum of its proper divisors (2088557).

55493443 is a wasteful number, since it uses less digits than its factorization.

55493443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861.

The product of its digits is 129600, while the sum is 37.

The square root of 55493443 is about 7449.3921228514. The cubic root of 55493443 is about 381.4291589023.

The spelling of 55493443 in words is "fifty-five million, four hundred ninety-three thousand, four hundred forty-three".