253887868 has 24 divisors (see below), whose sum is σ = 485042768. Its totient is φ = 115572096.

The previous prime is 253887853. The next prime is 253887871. The reversal of 253887868 is 868788352.

It is a happy number.

253887868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29646 + ... + 37237.

Almost surely, 2^253887868 is an apocalyptic number.

It is an amenable number.

253887868 is a deficient number, since it is larger than the sum of its proper divisors (231154900).

253887868 is a wasteful number, since it uses less digits than its factorization.

253887868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66973 (or 66971 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 55.

The square root of 253887868 is about 15933.8591684501. The cubic root of 253887868 is about 633.2093458733.

The spelling of 253887868 in words is "two hundred fifty-three million, eight hundred eighty-seven thousand, eight hundred sixty-eight".