55994835688 has 32 divisors (see below), whose sum is σ = 121272240960. Its totient is φ = 23955009280.

The previous prime is 55994835661. The next prime is 55994835703. The reversal of 55994835688 is 88653849955.

It is a happy number.

It is a super-2 number, since 2×55994835688² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18713356 + ... + 18716347.

It is an arithmetic number, because the mean of its divisors is an integer number (3789757530).

Almost surely, 2^55994835688 is an apocalyptic number.

It is an amenable number.

55994835688 is an abundant number, since it is smaller than the sum of its proper divisors (65277405272).

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

55994835688 is a wasteful number, since it uses less digits than its factorization.

55994835688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37429737 (or 37429733 counting only the distinct ones).

The product of its digits is 373248000, while the sum is 70.

The spelling of 55994835688 in words is "fifty-five billion, nine hundred ninety-four million, eight hundred thirty-five thousand, six hundred eighty-eight".