253278211 has 2 divisors, whose sum is σ = 253278212. Its totient is φ = 253278210.

The previous prime is 253278203. The next prime is 253278217. The reversal of 253278211 is 112872352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253278211 - 2³ = 253278203 is a prime.

It is not a weakly prime, because it can be changed into another prime (253278217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126639105 + 126639106.

It is an arithmetic number, because the mean of its divisors is an integer number (126639106).

Almost surely, 2^253278211 is an apocalyptic number.

253278211 is a deficient number, since it is larger than the sum of its proper divisors (1).

253278211 is an equidigital number, since it uses as much as digits as its factorization.

253278211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 253278211 is about 15914.7168055231. The cubic root of 253278211 is about 632.7021010493.

The spelling of 253278211 in words is "two hundred fifty-three million, two hundred seventy-eight thousand, two hundred eleven".