55144633 has 2 divisors, whose sum is σ = 55144634. Its totient is φ = 55144632.

The previous prime is 55144627. The next prime is 55144637. The reversal of 55144633 is 33644155.

55144633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34012224 + 21132409 = 5832^2 + 4597^2 .

It is a cyclic number.

It is not a de Polignac number, because 55144633 - 2²⁵ = 21590201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55144595 and 55144604.

It is not a weakly prime, because it can be changed into another prime (55144637) 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, 27572316 + 27572317.

It is an arithmetic number, because the mean of its divisors is an integer number (27572317).

Almost surely, 2^55144633 is an apocalyptic number.

It is an amenable number.

55144633 is a deficient number, since it is larger than the sum of its proper divisors (1).

55144633 is an equidigital number, since it uses as much as digits as its factorization.

55144633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 31.

The square root of 55144633 is about 7425.9432397508. The cubic root of 55144633 is about 380.6283072810.

Adding to 55144633 its reverse (33644155), we get a palindrome (88788788).

The spelling of 55144633 in words is "fifty-five million, one hundred forty-four thousand, six hundred thirty-three".