55128214063439 has 4 divisors (see below), whose sum is σ = 60139869887400. Its totient is φ = 50116558239480.

The previous prime is 55128214063399. The next prime is 55128214063493. The reversal of 55128214063439 is 93436041282155.

It is a happy number.

55128214063439 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 55128214063439 - 2¹⁶ = 55128213997903 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 (55128214063339) 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, 2505827911964 + ... + 2505827911985.

It is an arithmetic number, because the mean of its divisors is an integer number (15034967471850).

Almost surely, 2^{55128214063439} is an apocalyptic number.

55128214063439 is a deficient number, since it is larger than the sum of its proper divisors (5011655823961).

55128214063439 is a wasteful number, since it uses less digits than its factorization.

55128214063439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011655823960.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 55128214063439 in words is "fifty-five trillion, one hundred twenty-eight billion, two hundred fourteen million, sixty-three thousand, four hundred thirty-nine".