55811333 has 2 divisors, whose sum is σ = 55811334. Its totient is φ = 55811332.

The previous prime is 55811321. The next prime is 55811359. The reversal of 55811333 is 33311855.

55811333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32982049 + 22829284 = 5743^2 + 4778^2 .

It is a cyclic number.

It is not a de Polignac number, because 55811333 - 2⁶ = 55811269 is a prime.

It is a super-2 number, since 2×55811333² = 6229809782473778, which contains 22 as substring.

It is equal to p_3327761 and since 55811333 and 3327761 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 55811296 and 55811305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55819333) 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, 27905666 + 27905667.

It is an arithmetic number, because the mean of its divisors is an integer number (27905667).

Almost surely, 2^55811333 is an apocalyptic number.

It is an amenable number.

55811333 is a deficient number, since it is larger than the sum of its proper divisors (1).

55811333 is an equidigital number, since it uses as much as digits as its factorization.

55811333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 55811333 is about 7470.6982940017. The cubic root of 55811333 is about 382.1561019678.

The spelling of 55811333 in words is "fifty-five million, eight hundred eleven thousand, three hundred thirty-three".