2215005647 has 2 divisors, whose sum is σ = 2215005648. Its totient is φ = 2215005646.

The previous prime is 2215005641. The next prime is 2215005659. The reversal of 2215005647 is 7465005122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2215005647 - 2²⁰ = 2213957071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215005641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107502823 + 1107502824.

It is an arithmetic number, because the mean of its divisors is an integer number (1107502824).

Almost surely, 2^2215005647 is an apocalyptic number.

2215005647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215005647 is an equidigital number, since it uses as much as digits as its factorization.

2215005647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 2215005647 is about 47063.8464960101. The cubic root of 2215005647 is about 1303.5417516673.

The spelling of 2215005647 in words is "two billion, two hundred fifteen million, five thousand, six hundred forty-seven".