5222821 has 4 divisors (see below), whose sum is σ = 5273632. Its totient is φ = 5172012.

The previous prime is 5222807. The next prime is 5222837. The reversal of 5222821 is 1282225.

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 5222821 - 2⁹ = 5222309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5222792 and 5222801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5222801) 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, 25251 + ... + 25456.

It is an arithmetic number, because the mean of its divisors is an integer number (1318408).

Almost surely, 2^5222821 is an apocalyptic number.

It is an amenable number.

5222821 is a deficient number, since it is larger than the sum of its proper divisors (50811).

5222821 is a wasteful number, since it uses less digits than its factorization.

5222821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50810.

The product of its digits is 640, while the sum is 22.

The square root of 5222821 is about 2285.3492074517. The cubic root of 5222821 is about 173.5008927858.

The spelling of 5222821 in words is "five million, two hundred twenty-two thousand, eight hundred twenty-one".