5219861 has 4 divisors (see below), whose sum is σ = 5273772. Its totient is φ = 5165952.

The previous prime is 5219857. The next prime is 5219881. The reversal of 5219861 is 1689125.

5219861 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 can be written as a sum of positive squares in 2 ways, for example, as 2640625 + 2579236 = 1625^2 + 1606^2 .

It is a cyclic number.

It is not a de Polignac number, because 5219861 - 2² = 5219857 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 (5219801) 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, 26810 + ... + 27003.

It is an arithmetic number, because the mean of its divisors is an integer number (1318443).

Almost surely, 2^5219861 is an apocalyptic number.

It is an amenable number.

5219861 is a deficient number, since it is larger than the sum of its proper divisors (53911).

5219861 is an equidigital number, since it uses as much as digits as its factorization.

5219861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53910.

The product of its digits is 4320, while the sum is 32.

The square root of 5219861 is about 2284.7015122331. The cubic root of 5219861 is about 173.4681097558.

The spelling of 5219861 in words is "five million, two hundred nineteen thousand, eight hundred sixty-one".