55540333 has 4 divisors (see below), whose sum is σ = 55614460. Its totient is φ = 55466208.

The previous prime is 55540327. The next prime is 55540349. The reversal of 55540333 is 33304555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33304555 = 5 ⋅6660911.

It can be written as a sum of positive squares in 2 ways, for example, as 11410884 + 44129449 = 3378^2 + 6643^2 .

It is a cyclic number.

It is not a de Polignac number, because 55540333 - 2⁵ = 55540301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55540733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35928 + ... + 37441.

It is an arithmetic number, because the mean of its divisors is an integer number (13903615).

Almost surely, 2^55540333 is an apocalyptic number.

It is an amenable number.

55540333 is a deficient number, since it is larger than the sum of its proper divisors (74127).

55540333 is an equidigital number, since it uses as much as digits as its factorization.

55540333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74126.

The product of its (nonzero) digits is 13500, while the sum is 28.

The square root of 55540333 is about 7452.5386949683. The cubic root of 55540333 is about 381.5365600485.

Adding to 55540333 its reverse (33304555), we get a palindrome (88844888).

The spelling of 55540333 in words is "fifty-five million, five hundred forty thousand, three hundred thirty-three".