5721582817 has 2 divisors, whose sum is σ = 5721582818. Its totient is φ = 5721582816.

The previous prime is 5721582799. The next prime is 5721582899. The reversal of 5721582817 is 7182851275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3137792256 + 2583790561 = 56016^2 + 50831^2 .

It is a cyclic number.

It is not a de Polignac number, because 5721582817 - 2²³ = 5713194209 is a prime.

It is not a weakly prime, because it can be changed into another prime (5721589817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2860791408 + 2860791409.

It is an arithmetic number, because the mean of its divisors is an integer number (2860791409).

Almost surely, 2^5721582817 is an apocalyptic number.

It is an amenable number.

5721582817 is a deficient number, since it is larger than the sum of its proper divisors (1).

5721582817 is an equidigital number, since it uses as much as digits as its factorization.

5721582817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313600, while the sum is 46.

The square root of 5721582817 is about 75641.1450005881. The cubic root of 5721582817 is about 1788.5677521795.

The spelling of 5721582817 in words is "five billion, seven hundred twenty-one million, five hundred eighty-two thousand, eight hundred seventeen".