5212321 has 4 divisors (see below), whose sum is σ = 5227200. Its totient is φ = 5197444.

The previous prime is 5212313. The next prime is 5212343. The reversal of 5212321 is 1232125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5212321 - 2³ = 5212313 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5212295 and 5212304.

It is not an unprimeable number, because it can be changed into a prime (5212381) 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, 6901 + ... + 7618.

It is an arithmetic number, because the mean of its divisors is an integer number (1306800).

Almost surely, 2^5212321 is an apocalyptic number.

It is an amenable number.

5212321 is a deficient number, since it is larger than the sum of its proper divisors (14879).

5212321 is a wasteful number, since it uses less digits than its factorization.

5212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14878.

The product of its digits is 120, while the sum is 16.

The square root of 5212321 is about 2283.0508097719. The cubic root of 5212321 is about 173.3845456006.

Adding to 5212321 its reverse (1232125), we get a palindrome (6444446).

The spelling of 5212321 in words is "five million, two hundred twelve thousand, three hundred twenty-one".