253017223 has 2 divisors, whose sum is σ = 253017224. Its totient is φ = 253017222.

The previous prime is 253017209. The next prime is 253017277. The reversal of 253017223 is 322710352.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253017223 is a prime.

It is equal to p_13835230 and since 253017223 and 13835230 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253017293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126508611 + 126508612.

It is an arithmetic number, because the mean of its divisors is an integer number (126508612).

Almost surely, 2^253017223 is an apocalyptic number.

253017223 is a deficient number, since it is larger than the sum of its proper divisors (1).

253017223 is an equidigital number, since it uses as much as digits as its factorization.

253017223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 253017223 is about 15906.5151117396. The cubic root of 253017223 is about 632.4847058434.

Adding to 253017223 its reverse (322710352), we get a palindrome (575727575).

The spelling of 253017223 in words is "two hundred fifty-three million, seventeen thousand, two hundred twenty-three".