55443304442 has 8 divisors (see below), whose sum is σ = 86780824416. Its totient is φ = 26516362972.

The previous prime is 55443304393. The next prime is 55443304447. The reversal of 55443304442 is 24440334455.

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

It is a junction number, because it is equal to n+sod(n) for n = 55443304396 and 55443304405.

It is not an unprimeable number, because it can be changed into a prime (55443304447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602644568 + ... + 602644659.

It is an arithmetic number, because the mean of its divisors is an integer number (10847603052).

Almost surely, 2^55443304442 is an apocalyptic number.

55443304442 is a deficient number, since it is larger than the sum of its proper divisors (31337519974).

55443304442 is a wasteful number, since it uses less digits than its factorization.

55443304442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205289252.

The product of its (nonzero) digits is 460800, while the sum is 38.

Adding to 55443304442 its reverse (24440334455), we get a palindrome (79883638897).

The spelling of 55443304442 in words is "fifty-five billion, four hundred forty-three million, three hundred four thousand, four hundred forty-two".