55332133 has 4 divisors (see below), whose sum is σ = 55391148. Its totient is φ = 55273120.

The previous prime is 55332103. The next prime is 55332139. The reversal of 55332133 is 33123355.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33123355 = 5 ⋅6624671.

It can be written as a sum of positive squares in 2 ways, for example, as 17164449 + 38167684 = 4143^2 + 6178^2 .

It is a cyclic number.

It is not a de Polignac number, because 55332133 - 2¹³ = 55323941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55332098 and 55332107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55332139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28078 + ... + 29983.

It is an arithmetic number, because the mean of its divisors is an integer number (13847787).

Almost surely, 2^55332133 is an apocalyptic number.

It is an amenable number.

55332133 is a deficient number, since it is larger than the sum of its proper divisors (59015).

55332133 is an equidigital number, since it uses as much as digits as its factorization.

55332133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59014.

The product of its digits is 4050, while the sum is 25.

The square root of 55332133 is about 7438.5571853687. The cubic root of 55332133 is about 381.0592169882.

Adding to 55332133 its reverse (33123355), we get a palindrome (88455488).

The spelling of 55332133 in words is "fifty-five million, three hundred thirty-two thousand, one hundred thirty-three".