55111033 has 2 divisors, whose sum is σ = 55111034. Its totient is φ = 55111032.

The previous prime is 55111027. The next prime is 55111073. The reversal of 55111033 is 33011155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52881984 + 2229049 = 7272^2 + 1493^2 .

It is a cyclic number.

It is not a de Polignac number, because 55111033 - 2¹⁷ = 54979961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55111033.

It is not a weakly prime, because it can be changed into another prime (55111003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27555516 + 27555517.

It is an arithmetic number, because the mean of its divisors is an integer number (27555517).

Almost surely, 2^55111033 is an apocalyptic number.

It is an amenable number.

55111033 is a deficient number, since it is larger than the sum of its proper divisors (1).

55111033 is an equidigital number, since it uses as much as digits as its factorization.

55111033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 55111033 is about 7423.6805561662. The cubic root of 55111033 is about 380.5509851023.

Adding to 55111033 its reverse (33011155), we get a palindrome (88122188).

The spelling of 55111033 in words is "fifty-five million, one hundred eleven thousand, thirty-three".