2217250279 has 4 divisors (see below), whose sum is σ = 2347676784. Its totient is φ = 2086823776.

The previous prime is 2217250249. The next prime is 2217250289. The reversal of 2217250279 is 9720527122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2217250279 - 2⁵ = 2217250247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217250219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65213227 + ... + 65213260.

It is an arithmetic number, because the mean of its divisors is an integer number (586919196).

Almost surely, 2^2217250279 is an apocalyptic number.

2217250279 is a deficient number, since it is larger than the sum of its proper divisors (130426505).

2217250279 is a wasteful number, since it uses less digits than its factorization.

2217250279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130426504.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 2217250279 is about 47087.6871273160. The cubic root of 2217250279 is about 1303.9819286815.

The spelling of 2217250279 in words is "two billion, two hundred seventeen million, two hundred fifty thousand, two hundred seventy-nine".