55253333 has 4 divisors (see below), whose sum is σ = 55656780. Its totient is φ = 54849888.

The previous prime is 55253309. The next prime is 55253339. The reversal of 55253333 is 33335255.

55253333 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 32001649 + 23251684 = 5657^2 + 4822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55253333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55253296 and 55253305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55253339) 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, 201518 + ... + 201791.

It is an arithmetic number, because the mean of its divisors is an integer number (13914195).

Almost surely, 2^55253333 is an apocalyptic number.

It is an amenable number.

55253333 is a deficient number, since it is larger than the sum of its proper divisors (403447).

55253333 is a wasteful number, since it uses less digits than its factorization.

55253333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403446.

The product of its digits is 20250, while the sum is 29.

The square root of 55253333 is about 7433.2585721203. The cubic root of 55253333 is about 380.8782387738.

Adding to 55253333 its reverse (33335255), we get a palindrome (88588588).

The spelling of 55253333 in words is "fifty-five million, two hundred fifty-three thousand, three hundred thirty-three".