55847232 has 252 divisors, whose sum is σ = 199969120. Its totient is φ = 15116544.

The previous prime is 55847219. The next prime is 55847257. The reversal of 55847232 is 23274855.

55847232 is a `hidden beast` number, since 5 + 584 + 72 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (252).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2939319 + ... + 2939337.

Almost surely, 2^55847232 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 55847232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99984560).

55847232 is an abundant number, since it is smaller than the sum of its proper divisors (144121888).

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

55847232 is an frugal number, since it uses more digits than its factorization.

55847232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 31 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 55847232 is about 7473.1005613467. The cubic root of 55847232 is about 382.2380213007.

The spelling of 55847232 in words is "fifty-five million, eight hundred forty-seven thousand, two hundred thirty-two".