253845287 has 2 divisors, whose sum is σ = 253845288. Its totient is φ = 253845286.

The previous prime is 253845281. The next prime is 253845289. The reversal of 253845287 is 782548352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253845287 - 2⁶ = 253845223 is a prime.

It is a super-2 number, since 2×253845287² = 128874859464224738, which contains 22 as substring.

Together with 253845289, 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 (253845281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126922643 + 126922644.

It is an arithmetic number, because the mean of its divisors is an integer number (126922644).

Almost surely, 2^253845287 is an apocalyptic number.

253845287 is a deficient number, since it is larger than the sum of its proper divisors (1).

253845287 is an equidigital number, since it uses as much as digits as its factorization.

253845287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 537600, while the sum is 44.

The square root of 253845287 is about 15932.5229326683. The cubic root of 253845287 is about 633.1739441624.

The spelling of 253845287 in words is "two hundred fifty-three million, eight hundred forty-five thousand, two hundred eighty-seven".