55543236 has 72 divisors (see below), whose sum is σ = 154244160. Its totient is φ = 15220800.

The previous prime is 55543231. The next prime is 55543247. The reversal of 55543236 is 63234555.

55543236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55543197 and 55543206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55543231) 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 23 ways as a sum of consecutive naturals, for example, 367761 + ... + 367911.

It is an arithmetic number, because the mean of its divisors is an integer number (2142280).

Almost surely, 2^55543236 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 55543236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77122080).

55543236 is an abundant number, since it is smaller than the sum of its proper divisors (98700924).

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

55543236 is a wasteful number, since it uses less digits than its factorization.

55543236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 192 counting only the distinct ones).

The product of its digits is 54000, while the sum is 33.

The square root of 55543236 is about 7452.7334582689. The cubic root of 55543236 is about 381.5432073580.

The spelling of 55543236 in words is "fifty-five million, five hundred forty-three thousand, two hundred thirty-six".