55304233 has 4 divisors (see below), whose sum is σ = 56798980. Its totient is φ = 53809488.

The previous prime is 55304219. The next prime is 55304239. The reversal of 55304233 is 33240355.

It is a happy number.

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 21233664 + 34070569 = 4608^2 + 5837^2 .

It is a cyclic number.

It is not a de Polignac number, because 55304233 - 2⁵ = 55304201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55304198 and 55304207.

It is not an unprimeable number, because it can be changed into a prime (55304239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747318 + ... + 747391.

It is an arithmetic number, because the mean of its divisors is an integer number (14199745).

Almost surely, 2^55304233 is an apocalyptic number.

It is an amenable number.

55304233 is a deficient number, since it is larger than the sum of its proper divisors (1494747).

55304233 is a wasteful number, since it uses less digits than its factorization.

55304233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494746.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 55304233 is about 7436.6815852233. The cubic root of 55304233 is about 380.9951593362.

Adding to 55304233 its reverse (33240355), we get a palindrome (88544588).

The spelling of 55304233 in words is "fifty-five million, three hundred four thousand, two hundred thirty-three".