55687318206363 has 12 divisors (see below), whose sum is σ = 80438788800448. Its totient is φ = 37124162777520.

The previous prime is 55687318206349. The next prime is 55687318206367. The reversal of 55687318206363 is 36360281378655.

It is a happy number.

55687318206363 is a `hidden beast` number, since 5 + 5 + 6 + 87 + 318 + 206 + 36 + 3 = 666.

It is not a de Polignac number, because 55687318206363 - 2⁹ = 55687318205851 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 55687318206363.

It is not an unprimeable number, because it can be changed into a prime (55687318206367) 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, 59176120 + ... + 60109797.

Almost surely, 2^{55687318206363} is an apocalyptic number.

55687318206363 is a deficient number, since it is larger than the sum of its proper divisors (24751470594085).

55687318206363 is a wasteful number, since it uses less digits than its factorization.

55687318206363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119337794 (or 119337791 counting only the distinct ones).

The product of its (nonzero) digits is 130636800, while the sum is 63.

The spelling of 55687318206363 in words is "fifty-five trillion, six hundred eighty-seven billion, three hundred eighteen million, two hundred six thousand, three hundred sixty-three".