52213223 has 4 divisors (see below), whose sum is σ = 53427528. Its totient is φ = 50998920.

The previous prime is 52213199. The next prime is 52213237. The reversal of 52213223 is 32231225.

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 52213223 - 2¹² = 52209127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52213195 and 52213204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52213283) 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, 607088 + ... + 607173.

It is an arithmetic number, because the mean of its divisors is an integer number (13356882).

Almost surely, 2^52213223 is an apocalyptic number.

52213223 is a deficient number, since it is larger than the sum of its proper divisors (1214305).

52213223 is a wasteful number, since it uses less digits than its factorization.

52213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214304.

The product of its digits is 720, while the sum is 20.

The square root of 52213223 is about 7225.8717813147. The cubic root of 52213223 is about 373.7605848540.

Adding to 52213223 its reverse (32231225), we get a palindrome (84444448).

The spelling of 52213223 in words is "fifty-two million, two hundred thirteen thousand, two hundred twenty-three".