55132434648 has 256 divisors, whose sum is σ = 166823193600. Its totient is φ = 16822840320.

The previous prime is 55132434631. The next prime is 55132434697. The reversal of 55132434648 is 84643423155.

55132434648 is a `hidden beast` number, since 55 + 132 + 4 + 3 + 464 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10792911 + ... + 10798017.

It is an arithmetic number, because the mean of its divisors is an integer number (651653100).

Almost surely, 2^55132434648 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 55132434648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83411596800).

55132434648 is an abundant number, since it is smaller than the sum of its proper divisors (111690758952).

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

55132434648 is a wasteful number, since it uses less digits than its factorization.

55132434648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239 (or 5229 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The spelling of 55132434648 in words is "fifty-five billion, one hundred thirty-two million, four hundred thirty-four thousand, six hundred forty-eight".