253135394287 has 16 divisors (see below), whose sum is σ = 276724933632. Its totient is φ = 230603950080.

The previous prime is 253135394227. The next prime is 253135394299. The reversal of 253135394287 is 782493531352.

It is not a de Polignac number, because 253135394287 - 2²³ = 253127005679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253135394207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1341318 + ... + 1518355.

It is an arithmetic number, because the mean of its divisors is an integer number (17295308352).

Almost surely, 2^253135394287 is an apocalyptic number.

253135394287 is a deficient number, since it is larger than the sum of its proper divisors (23589539345).

253135394287 is a wasteful number, since it uses less digits than its factorization.

253135394287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859858.

The product of its digits is 5443200, while the sum is 52.

The spelling of 253135394287 in words is "two hundred fifty-three billion, one hundred thirty-five million, three hundred ninety-four thousand, two hundred eighty-seven".