55611727839 has 12 divisors (see below), whose sum is σ = 80839697016. Its totient is φ = 36838341072.

The previous prime is 55611727771. The next prime is 55611727849. The reversal of 55611727839 is 93872711655.

55611727839 is a `hidden beast` number, since 5 + 561 + 1 + 7 + 2 + 78 + 3 + 9 = 666.

It is not a de Polignac number, because 55611727839 - 2¹⁵ = 55611695071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55611727849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19677189 + ... + 19680014.

It is an arithmetic number, because the mean of its divisors is an integer number (6736641418).

Almost surely, 2^55611727839 is an apocalyptic number.

55611727839 is a deficient number, since it is larger than the sum of its proper divisors (25227969177).

55611727839 is a wasteful number, since it uses less digits than its factorization.

55611727839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39357366 (or 39357363 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The spelling of 55611727839 in words is "fifty-five billion, six hundred eleven million, seven hundred twenty-seven thousand, eight hundred thirty-nine".