253445111 has 2 divisors, whose sum is σ = 253445112. Its totient is φ = 253445110.

The previous prime is 253445083. The next prime is 253445113. The reversal of 253445111 is 111544352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253445111 - 2¹⁴ = 253428727 is a prime.

Together with 253445113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253445113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126722555 + 126722556.

It is an arithmetic number, because the mean of its divisors is an integer number (126722556).

Almost surely, 2^253445111 is an apocalyptic number.

253445111 is a deficient number, since it is larger than the sum of its proper divisors (1).

253445111 is an equidigital number, since it uses as much as digits as its factorization.

253445111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 26.

The square root of 253445111 is about 15919.9595162802. The cubic root of 253445111 is about 632.8410454849.

Adding to 253445111 its reverse (111544352), we get a palindrome (364989463).

The spelling of 253445111 in words is "two hundred fifty-three million, four hundred forty-five thousand, one hundred eleven".