5005465721 has 2 divisors, whose sum is σ = 5005465722. Its totient is φ = 5005465720.

The previous prime is 5005465693. The next prime is 5005465739. The reversal of 5005465721 is 1275645005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3346044025 + 1659421696 = 57845^2 + 40736^2 .

It is a cyclic number.

It is not a de Polignac number, because 5005465721 - 2¹⁰ = 5005464697 is a prime.

It is not a weakly prime, because it can be changed into another prime (5005464721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502732860 + 2502732861.

It is an arithmetic number, because the mean of its divisors is an integer number (2502732861).

Almost surely, 2^5005465721 is an apocalyptic number.

It is an amenable number.

5005465721 is a deficient number, since it is larger than the sum of its proper divisors (1).

5005465721 is an equidigital number, since it uses as much as digits as its factorization.

5005465721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 5005465721 is about 70749.3160461640. The cubic root of 5005465721 is about 1710.5988032039.

The spelling of 5005465721 in words is "five billion, five million, four hundred sixty-five thousand, seven hundred twenty-one".