55203323 has 4 divisors (see below), whose sum is σ = 63089520. Its totient is φ = 47317128.

The previous prime is 55203319. The next prime is 55203329. The reversal of 55203323 is 32330255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32330255 = 5 ⋅6466051.

It is a cyclic number.

It is not a de Polignac number, because 55203323 - 2² = 55203319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55203329) 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, 3943088 + ... + 3943101.

It is an arithmetic number, because the mean of its divisors is an integer number (15772380).

Almost surely, 2^55203323 is an apocalyptic number.

55203323 is a deficient number, since it is larger than the sum of its proper divisors (7886197).

55203323 is an equidigital number, since it uses as much as digits as its factorization.

55203323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7886196.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 55203323 is about 7429.8938754198. The cubic root of 55203323 is about 380.7632926441.

Adding to 55203323 its reverse (32330255), we get a palindrome (87533578).

The spelling of 55203323 in words is "fifty-five million, two hundred three thousand, three hundred twenty-three".