5219905 has 4 divisors (see below), whose sum is σ = 6263892. Its totient is φ = 4175920.

The previous prime is 5219897. The next prime is 5219911. The reversal of 5219905 is 5099125.

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 2005056 + 3214849 = 1416^2 + 1793^2 .

It is not a de Polignac number, because 5219905 - 2³ = 5219897 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 521986 + ... + 521995.

It is an arithmetic number, because the mean of its divisors is an integer number (1565973).

Almost surely, 2^5219905 is an apocalyptic number.

It is an amenable number.

5219905 is a deficient number, since it is larger than the sum of its proper divisors (1043987).

5219905 is a wasteful number, since it uses less digits than its factorization.

5219905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043986.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 5219905 is about 2284.7111414794. The cubic root of 5219905 is about 173.4685971619.

The spelling of 5219905 in words is "five million, two hundred nineteen thousand, nine hundred five".