5217127771 has 4 divisors (see below), whose sum is σ = 5235694344. Its totient is φ = 5198561200.

The previous prime is 5217127759. The next prime is 5217127781. The reversal of 5217127771 is 1777217125.

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 5217127771 - 2¹⁵ = 5217095003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5217127781) 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, 9282865 + ... + 9283426.

It is an arithmetic number, because the mean of its divisors is an integer number (1308923586).

Almost surely, 2^5217127771 is an apocalyptic number.

5217127771 is a deficient number, since it is larger than the sum of its proper divisors (18566573).

5217127771 is a wasteful number, since it uses less digits than its factorization.

5217127771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18566572.

The product of its digits is 48020, while the sum is 40.

The square root of 5217127771 is about 72229.6876014288. The cubic root of 5217127771 is about 1734.3782728617.

The spelling of 5217127771 in words is "five billion, two hundred seventeen million, one hundred twenty-seven thousand, seven hundred seventy-one".