55088877680 has 40 divisors (see below), whose sum is σ = 129836197392. Its totient is φ = 21733691904.

The previous prime is 55088877677. The next prime is 55088877691. The reversal of 55088877680 is 8677888055.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 4710674 + ... + 4722353.

Almost surely, 2^55088877680 is an apocalyptic number.

It is an amenable number.

55088877680 is an abundant number, since it is smaller than the sum of its proper divisors (74747319712).

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

55088877680 is a wasteful number, since it uses less digits than its factorization.

55088877680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9433113 (or 9433107 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 62.

The spelling of 55088877680 in words is "fifty-five billion, eighty-eight million, eight hundred seventy-seven thousand, six hundred eighty".