253568168 has 32 divisors (see below), whose sum is σ = 544968000. Its totient is φ = 108350592.

The previous prime is 253568153. The next prime is 253568173. The reversal of 253568168 is 861865352.

253568168 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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, 12908 + ... + 25956.

It is an arithmetic number, because the mean of its divisors is an integer number (17030250).

Almost surely, 2^253568168 is an apocalyptic number.

253568168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

253568168 is an abundant number, since it is smaller than the sum of its proper divisors (291399832).

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

253568168 is a wasteful number, since it uses less digits than its factorization.

253568168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13409 (or 13405 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

The square root of 253568168 is about 15923.8239126160. The cubic root of 253568168 is about 632.9434515112.

The spelling of 253568168 in words is "two hundred fifty-three million, five hundred sixty-eight thousand, one hundred sixty-eight".