5221000 has 64 divisors (see below), whose sum is σ = 12804480. Its totient is φ = 1988800.

The previous prime is 5220997. The next prime is 5221001. The reversal of 5221000 is 1225.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22887 + ... + 23113.

It is an arithmetic number, because the mean of its divisors is an integer number (200070).

Almost surely, 2^5221000 is an apocalyptic number.

5221000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6402240).

5221000 is an abundant number, since it is smaller than the sum of its proper divisors (7583480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5221000 is a wasteful number, since it uses less digits than its factorization.

5221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 5221000 is about 2284.9507653339. The cubic root of 5221000 is about 173.4807260437.

Adding to 5221000 its reverse (1225), we get a palindrome (5222225).

The spelling of 5221000 in words is "five million, two hundred twenty-one thousand".