5220191 has 4 divisors (see below), whose sum is σ = 5229672. Its totient is φ = 5210712.

The previous prime is 5220167. The next prime is 5220199. The reversal of 5220191 is 1910225.

5220191 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 5220191 - 2²² = 1025887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5220199) 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, 3860 + ... + 5033.

It is an arithmetic number, because the mean of its divisors is an integer number (1307418).

Almost surely, 2^5220191 is an apocalyptic number.

5220191 is a deficient number, since it is larger than the sum of its proper divisors (9481).

5220191 is an equidigital number, since it uses as much as digits as its factorization.

5220191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9480.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 5220191 is about 2284.7737305913. The cubic root of 5220191 is about 173.4717652344.

The spelling of 5220191 in words is "five million, two hundred twenty thousand, one hundred ninety-one".