55543332 has 48 divisors (see below), whose sum is σ = 140053760. Its totient is φ = 17031168.

The previous prime is 55543297. The next prime is 55543333. The reversal of 55543332 is 23334555.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 55543332.

It is not an unprimeable number, because it can be changed into a prime (55543333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71844 + ... + 72612.

Almost surely, 2^55543332 is an apocalyptic number.

55543332 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55543332 is an abundant number, since it is smaller than the sum of its proper divisors (84510428).

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

55543332 is a wasteful number, since it uses less digits than its factorization.

55543332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1250 counting only the distinct ones).

The product of its digits is 27000, while the sum is 30.

The square root of 55543332 is about 7452.7398988560. The cubic root of 55543332 is about 381.5434271755.

Adding to 55543332 its reverse (23334555), we get a palindrome (78877887).

The spelling of 55543332 in words is "fifty-five million, five hundred forty-three thousand, three hundred thirty-two".