55304243 has 4 divisors (see below), whose sum is σ = 56083248. Its totient is φ = 54525240.

The previous prime is 55304239. The next prime is 55304251. The reversal of 55304243 is 34240355.

55304243 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 55304243 - 2² = 55304239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55304273) 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, 389396 + ... + 389537.

It is an arithmetic number, because the mean of its divisors is an integer number (14020812).

Almost surely, 2^55304243 is an apocalyptic number.

55304243 is a deficient number, since it is larger than the sum of its proper divisors (779005).

55304243 is an equidigital number, since it uses as much as digits as its factorization.

55304243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779004.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 55304243 is about 7436.6822575662. The cubic root of 55304243 is about 380.9951822998.

Adding to 55304243 its reverse (34240355), we get a palindrome (89544598).

The spelling of 55304243 in words is "fifty-five million, three hundred four thousand, two hundred forty-three".