52221343 has 4 divisors (see below), whose sum is σ = 52738488. Its totient is φ = 51704200.

The previous prime is 52221317. The next prime is 52221349. The reversal of 52221343 is 34312225.

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 52221343 - 2¹⁷ = 52090271 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52221349) 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, 258421 + ... + 258622.

It is an arithmetic number, because the mean of its divisors is an integer number (13184622).

Almost surely, 2^52221343 is an apocalyptic number.

52221343 is a deficient number, since it is larger than the sum of its proper divisors (517145).

52221343 is a wasteful number, since it uses less digits than its factorization.

52221343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517144.

The product of its digits is 1440, while the sum is 22.

The square root of 52221343 is about 7226.4336293915. The cubic root of 52221343 is about 373.7799591202.

Adding to 52221343 its reverse (34312225), we get a palindrome (86533568).

The spelling of 52221343 in words is "fifty-two million, two hundred twenty-one thousand, three hundred forty-three".