55543333 has 2 divisors, whose sum is σ = 55543334. Its totient is φ = 55543332.

The previous prime is 55543297. The next prime is 55543343. The reversal of 55543333 is 33334555.

55543333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39917124 + 15626209 = 6318^2 + 3953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55543333 is a prime.

It is a super-3 number, since 3×55543333³ (a number of 24 digits) contains 333 as substring.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 55543295 and 55543304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55543343) 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 as a sum of consecutive naturals, namely, 27771666 + 27771667.

It is an arithmetic number, because the mean of its divisors is an integer number (27771667).

Almost surely, 2^55543333 is an apocalyptic number.

It is an amenable number.

55543333 is a deficient number, since it is larger than the sum of its proper divisors (1).

55543333 is an equidigital number, since it uses as much as digits as its factorization.

55543333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40500, while the sum is 31.

The square root of 55543333 is about 7452.7399659454. The cubic root of 55543333 is about 381.5434294652.

Adding to 55543333 its reverse (33334555), we get a palindrome (88877888).

The spelling of 55543333 in words is "fifty-five million, five hundred forty-three thousand, three hundred thirty-three".