55330333 has 2 divisors, whose sum is σ = 55330334. Its totient is φ = 55330332.

The previous prime is 55330309. The next prime is 55330343. The reversal of 55330333 is 33303355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44916804 + 10413529 = 6702^2 + 3227^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55330333 is a prime.

It is a super-2 number, since 2×55330333² = 6122891499781778, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55330298 and 55330307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55330343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27665166 + 27665167.

It is an arithmetic number, because the mean of its divisors is an integer number (27665167).

Almost surely, 2^55330333 is an apocalyptic number.

It is an amenable number.

55330333 is a deficient number, since it is larger than the sum of its proper divisors (1).

55330333 is an equidigital number, since it uses as much as digits as its factorization.

55330333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6075, while the sum is 25.

The square root of 55330333 is about 7438.4361931793. The cubic root of 55330333 is about 381.0550848864.

Adding to 55330333 its reverse (33303355), we get a palindrome (88633688).

The spelling of 55330333 in words is "fifty-five million, three hundred thirty thousand, three hundred thirty-three".