55247119689 has 16 divisors (see below), whose sum is σ = 75716267072. Its totient is φ = 35806339008.

The previous prime is 55247119621. The next prime is 55247119699. The reversal of 55247119689 is 98691174255.

It is a happy number.

It is not a de Polignac number, because 55247119689 - 2¹¹ = 55247117641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55247119699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70519 + ... + 339804.

It is an arithmetic number, because the mean of its divisors is an integer number (4732266692).

Almost surely, 2^55247119689 is an apocalyptic number.

It is an amenable number.

55247119689 is a deficient number, since it is larger than the sum of its proper divisors (20469147383).

55247119689 is a wasteful number, since it uses less digits than its factorization.

55247119689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411576.

The product of its digits is 5443200, while the sum is 57.

It can be divided in two parts, 55247 and 119689, that added together give a triangular number (174936 = T₅₉₁).

The spelling of 55247119689 in words is "fifty-five billion, two hundred forty-seven million, one hundred nineteen thousand, six hundred eighty-nine".