220420253 has 2 divisors, whose sum is σ = 220420254. Its totient is φ = 220420252.

The previous prime is 220420243. The next prime is 220420297. The reversal of 220420253 is 352024022.

220420253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131721529 + 88698724 = 11477^2 + 9418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220420253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220420243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110210126 + 110210127.

It is an arithmetic number, because the mean of its divisors is an integer number (110210127).

Almost surely, 2^220420253 is an apocalyptic number.

It is an amenable number.

220420253 is a deficient number, since it is larger than the sum of its proper divisors (1).

220420253 is an equidigital number, since it uses as much as digits as its factorization.

220420253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 220420253 is about 14846.5569409207. The cubic root of 220420253 is about 604.0652212730.

Adding to 220420253 its reverse (352024022), we get a palindrome (572444275).

The spelling of 220420253 in words is "two hundred twenty million, four hundred twenty thousand, two hundred fifty-three".