253842385 has 16 divisors (see below), whose sum is σ = 331250256. Its totient is φ = 185960448.

The previous prime is 253842383. The next prime is 253842397. The reversal of 253842385 is 583248352.

253842385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 173056 + 253669329 = 416^2 + 15927^2 .

It is a cyclic number.

It is not a de Polignac number, because 253842385 - 2¹ = 253842383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253842383) 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, 37212 + ... + 43501.

It is an arithmetic number, because the mean of its divisors is an integer number (20703141).

Almost surely, 2^253842385 is an apocalyptic number.

It is an amenable number.

253842385 is a deficient number, since it is larger than the sum of its proper divisors (77407871).

253842385 is a wasteful number, since it uses less digits than its factorization.

253842385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80772.

The product of its digits is 230400, while the sum is 40.

The square root of 253842385 is about 15932.4318608303. The cubic root of 253842385 is about 633.1715313046.

The spelling of 253842385 in words is "two hundred fifty-three million, eight hundred forty-two thousand, three hundred eighty-five".