2217928253 has 4 divisors (see below), whose sum is σ = 2225498268. Its totient is φ = 2210358240.

The previous prime is 2217928231. The next prime is 2217928291. The reversal of 2217928253 is 3528297122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2119957849 + 97970404 = 46043^2 + 9898^2 .

It is a cyclic number.

It is not a de Polignac number, because 2217928253 - 2⁸ = 2217927997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2217928253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217928553) 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, 3784568 + ... + 3785153.

It is an arithmetic number, because the mean of its divisors is an integer number (556374567).

Almost surely, 2^2217928253 is an apocalyptic number.

It is an amenable number.

2217928253 is a deficient number, since it is larger than the sum of its proper divisors (7570015).

2217928253 is an equidigital number, since it uses as much as digits as its factorization.

2217928253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7570014.

The product of its digits is 120960, while the sum is 41.

The square root of 2217928253 is about 47094.8856352789. The cubic root of 2217928253 is about 1304.1148223772.

The spelling of 2217928253 in words is "two billion, two hundred seventeen million, nine hundred twenty-eight thousand, two hundred fifty-three".