55283223 has 4 divisors (see below), whose sum is σ = 73710968. Its totient is φ = 36855480.

The previous prime is 55283209. The next prime is 55283257. The reversal of 55283223 is 32238255.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55283223 - 2⁶ = 55283159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55283203) 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, 9213868 + ... + 9213873.

It is an arithmetic number, because the mean of its divisors is an integer number (18427742).

Almost surely, 2^55283223 is an apocalyptic number.

55283223 is a deficient number, since it is larger than the sum of its proper divisors (18427745).

55283223 is a wasteful number, since it uses less digits than its factorization.

55283223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18427744.

The product of its digits is 14400, while the sum is 30.

The square root of 55283223 is about 7435.2688586224. The cubic root of 55283223 is about 380.9469067177.

The spelling of 55283223 in words is "fifty-five million, two hundred eighty-three thousand, two hundred twenty-three".