55111333 has 2 divisors, whose sum is σ = 55111334. Its totient is φ = 55111332.

The previous prime is 55111327. The next prime is 55111349. The reversal of 55111333 is 33311155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55100929 + 10404 = 7423^2 + 102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55111333 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55111363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27555666 + 27555667.

It is an arithmetic number, because the mean of its divisors is an integer number (27555667).

Almost surely, 2^55111333 is an apocalyptic number.

It is an amenable number.

55111333 is a deficient number, since it is larger than the sum of its proper divisors (1).

55111333 is an equidigital number, since it uses as much as digits as its factorization.

55111333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 675, while the sum is 22.

The square root of 55111333 is about 7423.7007617495. The cubic root of 55111333 is about 380.5516756179.

Adding to 55111333 its reverse (33311155), we get a palindrome (88422488).

The spelling of 55111333 in words is "fifty-five million, one hundred eleven thousand, three hundred thirty-three".