55239872832 has 336 divisors, whose sum is σ = 175829976000. Its totient is φ = 16958896128.

The previous prime is 55239872827. The next prime is 55239872837. The reversal of 55239872832 is 23827893255.

It is a happy number.

55239872832 is a `hidden beast` number, since 5 + 523 + 9 + 87 + 2 + 8 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (55239872827) and next prime (55239872837).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55239872837) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44946394 + ... + 44947622.

It is an arithmetic number, because the mean of its divisors is an integer number (523303500).

Almost surely, 2^55239872832 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 55239872832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87914988000).

55239872832 is an abundant number, since it is smaller than the sum of its proper divisors (120590103168).

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

55239872832 is a wasteful number, since it uses less digits than its factorization.

55239872832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343 (or 1290 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 55239872832 in words is "fifty-five billion, two hundred thirty-nine million, eight hundred seventy-two thousand, eight hundred thirty-two".