201550223 has 4 divisors (see below), whose sum is σ = 230343120. Its totient is φ = 172757328.

The previous prime is 201550213. The next prime is 201550243. The reversal of 201550223 is 322055102.

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

It is a cyclic number.

It is not a de Polignac number, because 201550223 - 2⁴ = 201550207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201550195 and 201550204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201550213) 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, 14396438 + ... + 14396451.

It is an arithmetic number, because the mean of its divisors is an integer number (57585780).

Almost surely, 2^201550223 is an apocalyptic number.

201550223 is a deficient number, since it is larger than the sum of its proper divisors (28792897).

201550223 is an equidigital number, since it uses as much as digits as its factorization.

201550223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28792896.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 201550223 is about 14196.8384860856. The cubic root of 201550223 is about 586.3106203425.

The spelling of 201550223 in words is "two hundred one million, five hundred fifty thousand, two hundred twenty-three".