55011244449839 has 4 divisors (see below), whose sum is σ = 55011332089824. Its totient is φ = 55011156809856.

The previous prime is 55011244449829. The next prime is 55011244449857. The reversal of 55011244449839 is 93894444211055.

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 55011244449839 - 2⁴⁰ = 53911732822063 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 (55011244449829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42871607 + ... + 44136120.

It is an arithmetic number, because the mean of its divisors is an integer number (13752833022456).

Almost surely, 2^{55011244449839} is an apocalyptic number.

55011244449839 is a deficient number, since it is larger than the sum of its proper divisors (87639985).

55011244449839 is an equidigital number, since it uses as much as digits as its factorization.

55011244449839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87639984.

The product of its (nonzero) digits is 24883200, while the sum is 59.

The spelling of 55011244449839 in words is "fifty-five trillion, eleven billion, two hundred forty-four million, four hundred forty-nine thousand, eight hundred thirty-nine".