7002561217 has 2 divisors, whose sum is σ = 7002561218. Its totient is φ = 7002561216.

The previous prime is 7002561211. The next prime is 7002561221. The reversal of 7002561217 is 7121652007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3905750016 + 3096811201 = 62496^2 + 55649^2 .

It is an emirp because it is prime and its reverse (7121652007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7002561217 - 2³¹ = 4855077569 is a prime.

It is not a weakly prime, because it can be changed into another prime (7002561211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3501280608 + 3501280609.

It is an arithmetic number, because the mean of its divisors is an integer number (3501280609).

Almost surely, 2^7002561217 is an apocalyptic number.

It is an amenable number.

7002561217 is a deficient number, since it is larger than the sum of its proper divisors (1).

7002561217 is an equidigital number, since it uses as much as digits as its factorization.

7002561217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 7002561217 is about 83681.3074527400. The cubic root of 7002561217 is about 1913.1644606028.

The spelling of 7002561217 in words is "seven billion, two million, five hundred sixty-one thousand, two hundred seventeen".