253286279 has 2 divisors, whose sum is σ = 253286280. Its totient is φ = 253286278.

The previous prime is 253286269. The next prime is 253286287. The reversal of 253286279 is 972682352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253286279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253286269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126643139 + 126643140.

It is an arithmetic number, because the mean of its divisors is an integer number (126643140).

Almost surely, 2^253286279 is an apocalyptic number.

253286279 is a deficient number, since it is larger than the sum of its proper divisors (1).

253286279 is an equidigital number, since it uses as much as digits as its factorization.

253286279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 253286279 is about 15914.9702795827. The cubic root of 253286279 is about 632.7088190720.

The spelling of 253286279 in words is "two hundred fifty-three million, two hundred eighty-six thousand, two hundred seventy-nine".