55636726789 has 16 divisors (see below), whose sum is σ = 63891815040. Its totient is φ = 47458817280.

The previous prime is 55636726759. The next prime is 55636726793. The reversal of 55636726789 is 98762763655.

It is not a de Polignac number, because 55636726789 - 2⁵ = 55636726757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55636726789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55636726759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1573822 + ... + 1608784.

It is an arithmetic number, because the mean of its divisors is an integer number (3993238440).

Almost surely, 2^55636726789 is an apocalyptic number.

It is an amenable number.

55636726789 is a deficient number, since it is larger than the sum of its proper divisors (8255088251).

55636726789 is a wasteful number, since it uses less digits than its factorization.

55636726789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36060.

The product of its digits is 114307200, while the sum is 64.

The spelling of 55636726789 in words is "fifty-five billion, six hundred thirty-six million, seven hundred twenty-six thousand, seven hundred eighty-nine".