55053306 has 144 divisors (see below), whose sum is σ = 157352832. Its totient is φ = 13590720.

The previous prime is 55053277. The next prime is 55053307. The reversal of 55053306 is 60335055.

It is a happy number.

55053306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55053306.

It is not an unprimeable number, because it can be changed into a prime (55053307) 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 71 ways as a sum of consecutive naturals, for example, 350580 + ... + 350736.

It is an arithmetic number, because the mean of its divisors is an integer number (1092728).

Almost surely, 2^55053306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55053306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78676416).

55053306 is an abundant number, since it is smaller than the sum of its proper divisors (102299526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55053306 is a wasteful number, since it uses less digits than its factorization.

55053306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 55053306 is about 7419.7915065047. The cubic root of 55053306 is about 380.4180671228.

The spelling of 55053306 in words is "fifty-five million, fifty-three thousand, three hundred six".