253220213 has 2 divisors, whose sum is σ = 253220214. Its totient is φ = 253220212.

The previous prime is 253220207. The next prime is 253220237. The reversal of 253220213 is 312022352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216472369 + 36747844 = 14713^2 + 6062^2 .

It is a cyclic number.

It is not a de Polignac number, because 253220213 - 2⁴ = 253220197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253220203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126610106 + 126610107.

It is an arithmetic number, because the mean of its divisors is an integer number (126610107).

Almost surely, 2^253220213 is an apocalyptic number.

It is an amenable number.

253220213 is a deficient number, since it is larger than the sum of its proper divisors (1).

253220213 is an equidigital number, since it uses as much as digits as its factorization.

253220213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 253220213 is about 15912.8945512751. The cubic root of 253220213 is about 632.6538033590.

Adding to 253220213 its reverse (312022352), we get a palindrome (565242565).

The spelling of 253220213 in words is "two hundred fifty-three million, two hundred twenty thousand, two hundred thirteen".