55563001686 has 24 divisors (see below), whose sum is σ = 125620700400. Its totient is φ = 17715739536.

The previous prime is 55563001661. The next prime is 55563001691. The reversal of 55563001686 is 68610036555.

55563001686 is a `hidden beast` number, since 5 + 5 + 5 + 630 + 0 + 1 + 6 + 8 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67104661 + ... + 67105488.

It is an arithmetic number, because the mean of its divisors is an integer number (5234195850).

Almost surely, 2^55563001686 is an apocalyptic number.

55563001686 is an abundant number, since it is smaller than the sum of its proper divisors (70057698714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55563001686 is a wasteful number, since it uses less digits than its factorization.

55563001686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134210180 (or 134210177 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 55563001686 in words is "fifty-five billion, five hundred sixty-three million, one thousand, six hundred eighty-six".