55353533 has 4 divisors (see below), whose sum is σ = 55496220. Its totient is φ = 55210848.

The previous prime is 55353521. The next prime is 55353541. The reversal of 55353533 is 33535355.

55353533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27019204 + 28334329 = 5198^2 + 5323^2 .

It is a cyclic number.

It is not a de Polignac number, because 55353533 - 2⁶ = 55353469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55353533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55353503) 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 in 3 ways as a sum of consecutive naturals, for example, 70760 + ... + 71537.

It is an arithmetic number, because the mean of its divisors is an integer number (13874055).

Almost surely, 2^55353533 is an apocalyptic number.

It is an amenable number.

55353533 is a deficient number, since it is larger than the sum of its proper divisors (142687).

55353533 is a wasteful number, since it uses less digits than its factorization.

55353533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142686.

The product of its digits is 50625, while the sum is 32.

The square root of 55353533 is about 7439.9954973105. The cubic root of 55353533 is about 381.1083362235.

Adding to 55353533 its reverse (33535355), we get a palindrome (88888888).

The spelling of 55353533 in words is "fifty-five million, three hundred fifty-three thousand, five hundred thirty-three".