2217552973 has 2 divisors, whose sum is σ = 2217552974. Its totient is φ = 2217552972.

The previous prime is 2217552971. The next prime is 2217552979. The reversal of 2217552973 is 3792557122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1684035369 + 533517604 = 41037^2 + 23098^2 .

It is a cyclic number.

It is not a de Polignac number, because 2217552973 - 2¹ = 2217552971 is a prime.

It is a super-2 number, since 2×2217552973² = 9835082376122277458, which contains 22 as substring.

Together with 2217552971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2217552971) by changing a digit.

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 as a sum of consecutive naturals, namely, 1108776486 + 1108776487.

It is an arithmetic number, because the mean of its divisors is an integer number (1108776487).

Almost surely, 2^2217552973 is an apocalyptic number.

It is an amenable number.

2217552973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217552973 is an equidigital number, since it uses as much as digits as its factorization.

2217552973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 43.

The square root of 2217552973 is about 47090.9011699713. The cubic root of 2217552973 is about 1304.0412648706.

The spelling of 2217552973 in words is "two billion, two hundred seventeen million, five hundred fifty-two thousand, nine hundred seventy-three".