5219391217 has 4 divisors (see below), whose sum is σ = 5220629056. Its totient is φ = 5218153380.

The previous prime is 5219391193. The next prime is 5219391227. The reversal of 5219391217 is 7121939125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5219391217 - 2³¹ = 3071907569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5219391217.

It is not an unprimeable number, because it can be changed into a prime (5219391227) 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, 612573 + ... + 621034.

It is an arithmetic number, because the mean of its divisors is an integer number (1305157264).

Almost surely, 2^5219391217 is an apocalyptic number.

It is an amenable number.

5219391217 is a deficient number, since it is larger than the sum of its proper divisors (1237839).

5219391217 is a wasteful number, since it uses less digits than its factorization.

5219391217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237838.

The product of its digits is 34020, while the sum is 40.

The square root of 5219391217 is about 72245.3542935461. The cubic root of 5219391217 is about 1734.6290560613.

The spelling of 5219391217 in words is "five billion, two hundred nineteen million, three hundred ninety-one thousand, two hundred seventeen".