52222621 has 12 divisors (see below), whose sum is σ = 60130944. Its totient is φ = 44973000.

The previous prime is 52222607. The next prime is 52222633. The reversal of 52222621 is 12622225.

It is a happy number.

It is not a de Polignac number, because 52222621 - 2¹¹ = 52220573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52222592 and 52222601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52222601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2605 + ... + 10546.

It is an arithmetic number, because the mean of its divisors is an integer number (5010912).

Almost surely, 2^52222621 is an apocalyptic number.

It is an amenable number.

52222621 is a deficient number, since it is larger than the sum of its proper divisors (7908323).

52222621 is a wasteful number, since it uses less digits than its factorization.

52222621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13200 (or 13181 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 52222621 is about 7226.5220542111. The cubic root of 52222621 is about 373.7830082367.

Adding to 52222621 its reverse (12622225), we get a palindrome (64844846).

The spelling of 52222621 in words is "fifty-two million, two hundred twenty-two thousand, six hundred twenty-one".