5221811 has 4 divisors (see below), whose sum is σ = 5967792. Its totient is φ = 4475832.

The previous prime is 5221793. The next prime is 5221817. The reversal of 5221811 is 1181225.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5221811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5221817) 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, 372980 + ... + 372993.

It is an arithmetic number, because the mean of its divisors is an integer number (1491948).

Almost surely, 2^5221811 is an apocalyptic number.

5221811 is a deficient number, since it is larger than the sum of its proper divisors (745981).

5221811 is an equidigital number, since it uses as much as digits as its factorization.

5221811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745980.

The product of its digits is 160, while the sum is 20.

The square root of 5221811 is about 2285.1282239734. The cubic root of 5221811 is about 173.4897080768.

The spelling of 5221811 in words is "five million, two hundred twenty-one thousand, eight hundred eleven".