55636187399 has 16 divisors (see below), whose sum is σ = 60414412800. Its totient is φ = 50930008416.

The previous prime is 55636187381. The next prime is 55636187401. The reversal of 55636187399 is 99378163655.

55636187399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55636187399 - 2⁸ = 55636187143 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 (55636187359) 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, 1643882 + ... + 1677384.

It is an arithmetic number, because the mean of its divisors is an integer number (3775900800).

Almost surely, 2^55636187399 is an apocalyptic number.

55636187399 is a deficient number, since it is larger than the sum of its proper divisors (4778225401).

55636187399 is a wasteful number, since it uses less digits than its factorization.

55636187399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34574.

The product of its digits is 36741600, while the sum is 62.

The spelling of 55636187399 in words is "fifty-five billion, six hundred thirty-six million, one hundred eighty-seven thousand, three hundred ninety-nine".