55480669788 has 96 divisors (see below), whose sum is σ = 139708800000. Its totient is φ = 17078584320.

The previous prime is 55480669721. The next prime is 55480669789. The reversal of 55480669788 is 88796608455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55480669789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18685168 + ... + 18688136.

It is an arithmetic number, because the mean of its divisors is an integer number (1455300000).

Almost surely, 2^55480669788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55480669788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69854400000).

55480669788 is an abundant number, since it is smaller than the sum of its proper divisors (84228130212).

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

55480669788 is a wasteful number, since it uses less digits than its factorization.

55480669788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035 (or 5033 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 66.

The spelling of 55480669788 in words is "fifty-five billion, four hundred eighty million, six hundred sixty-nine thousand, seven hundred eighty-eight".