253856268 has 36 divisors (see below), whose sum is σ = 665461160. Its totient is φ = 84618432.

The previous prime is 253856263. The next prime is 253856293. The reversal of 253856268 is 862658352.

253856268 is a `hidden beast` number, since 2 + 5 + 385 + 6 + 268 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (253856263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129613 + ... + 131556.

Almost surely, 2^253856268 is an apocalyptic number.

It is an amenable number.

253856268 is an abundant number, since it is smaller than the sum of its proper divisors (411604892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253856268 is a wasteful number, since it uses less digits than its factorization.

253856268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261188 (or 261174 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 253856268 is about 15932.8675385192. The cubic root of 253856268 is about 633.1830741105.

The spelling of 253856268 in words is "two hundred fifty-three million, eight hundred fifty-six thousand, two hundred sixty-eight".