55689520756 has 12 divisors (see below), whose sum is σ = 97636806820. Its totient is φ = 27793290240.

The previous prime is 55689520727. The next prime is 55689520763. The reversal of 55689520756 is 65702598655.

It can be written as a sum of positive squares in 2 ways, for example, as 40056019600 + 15633501156 = 200140^2 + 125034^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55689520756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12865101 + ... + 12869428.

Almost surely, 2^55689520756 is an apocalyptic number.

It is an amenable number.

55689520756 is a deficient number, since it is larger than the sum of its proper divisors (41947286064).

55689520756 is a wasteful number, since it uses less digits than its factorization.

55689520756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25735074 (or 25735072 counting only the distinct ones).

The product of its (nonzero) digits is 22680000, while the sum is 58.

The spelling of 55689520756 in words is "fifty-five billion, six hundred eighty-nine million, five hundred twenty thousand, seven hundred fifty-six".