5721171005 has 12 divisors (see below), whose sum is σ = 7546272636. Its totient is φ = 4160851200.

The previous prime is 5721170977. The next prime is 5721171013. The reversal of 5721171005 is 5001711275.

It can be written as a sum of positive squares in 2 ways, for example, as 3273098521 + 2448072484 = 57211^2 + 49478^2 .

It is not a de Polignac number, because 5721171005 - 2¹² = 5721166909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4727636 + ... + 4728845.

It is an arithmetic number, because the mean of its divisors is an integer number (628856053).

Almost surely, 2^5721171005 is an apocalyptic number.

5721171005 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5721171005 is a deficient number, since it is larger than the sum of its proper divisors (1825101631).

5721171005 is a wasteful number, since it uses less digits than its factorization.

5721171005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9456508 (or 9456497 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 29.

The square root of 5721171005 is about 75638.4228087815. The cubic root of 5721171005 is about 1788.5248403165.

The spelling of 5721171005 in words is "five billion, seven hundred twenty-one million, one hundred seventy-one thousand, five".