55663133 has 4 divisors (see below), whose sum is σ = 57167580. Its totient is φ = 54158688.

The previous prime is 55663121. The next prime is 55663147. The reversal of 55663133 is 33136655.

55663133 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 35259844 + 20403289 = 5938^2 + 4517^2 .

It is a cyclic number.

It is not a de Polignac number, because 55663133 - 2²² = 51468829 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 55663133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55663183) 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, 752168 + ... + 752241.

It is an arithmetic number, because the mean of its divisors is an integer number (14291895).

Almost surely, 2^55663133 is an apocalyptic number.

It is an amenable number.

55663133 is a deficient number, since it is larger than the sum of its proper divisors (1504447).

55663133 is a wasteful number, since it uses less digits than its factorization.

55663133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504446.

The product of its digits is 24300, while the sum is 32.

The square root of 55663133 is about 7460.7729492325. The cubic root of 55663133 is about 381.8175462489.

Adding to 55663133 its reverse (33136655), we get a palindrome (88799788).

The spelling of 55663133 in words is "fifty-five million, six hundred sixty-three thousand, one hundred thirty-three".