55471784832 has 96 divisors (see below), whose sum is σ = 159688137960. Its totient is φ = 18483379200.

The previous prime is 55471784791. The next prime is 55471784833. The reversal of 55471784832 is 23848717455.

55471784832 is a `hidden beast` number, since 5 + 547 + 17 + 8 + 4 + 83 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55471784833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3518407 + ... + 3534137.

Almost surely, 2^55471784832 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 55471784832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79844068980).

55471784832 is an abundant number, since it is smaller than the sum of its proper divisors (104216353128).

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

55471784832 is a wasteful number, since it uses less digits than its factorization.

55471784832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18812 (or 18797 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 54.

The spelling of 55471784832 in words is "fifty-five billion, four hundred seventy-one million, seven hundred eighty-four thousand, eight hundred thirty-two".