55439534592 has 160 divisors (see below), whose sum is σ = 176728896960. Its totient is φ = 17058263040.

The previous prime is 55439534561. The next prime is 55439534593. The reversal of 55439534592 is 29543593455.

55439534592 is a `hidden beast` number, since 5 + 5 + 43 + 9 + 5 + 3 + 4 + 592 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (55439534593) 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 15 ways as a sum of consecutive naturals, for example, 25467 + ... + 333957.

It is an arithmetic number, because the mean of its divisors is an integer number (1104555606).

Almost surely, 2^55439534592 is an apocalyptic number.

55439534592 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55439534592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88364448480).

55439534592 is an abundant number, since it is smaller than the sum of its proper divisors (121289362368).

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

55439534592 is a wasteful number, since it uses less digits than its factorization.

55439534592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308531 (or 308509 counting only the distinct ones).

The product of its digits is 14580000, while the sum is 54.

The spelling of 55439534592 in words is "fifty-five billion, four hundred thirty-nine million, five hundred thirty-four thousand, five hundred ninety-two".