220909253 has 2 divisors, whose sum is σ = 220909254. Its totient is φ = 220909252.

The previous prime is 220909223. The next prime is 220909279. The reversal of 220909253 is 352909022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220908769 + 484 = 14863^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 220909253 - 2¹⁴ = 220892869 is a prime.

It is a super-2 number, since 2×220909253² = 97601796122036018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220909223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110454626 + 110454627.

It is an arithmetic number, because the mean of its divisors is an integer number (110454627).

Almost surely, 2^220909253 is an apocalyptic number.

It is an amenable number.

220909253 is a deficient number, since it is larger than the sum of its proper divisors (1).

220909253 is an equidigital number, since it uses as much as digits as its factorization.

220909253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 220909253 is about 14863.0162820337. The cubic root of 220909253 is about 604.5115954449.

The spelling of 220909253 in words is "two hundred twenty million, nine hundred nine thousand, two hundred fifty-three".