253686688 has 24 divisors (see below), whose sum is σ = 521162208. Its totient is φ = 121328064.

The previous prime is 253686659. The next prime is 253686701. The reversal of 253686688 is 886686352.

It is a happy number.

253686688 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171606 + ... + 173077.

It is an arithmetic number, because the mean of its divisors is an integer number (21715092).

Almost surely, 2^253686688 is an apocalyptic number.

It is an amenable number.

253686688 is an abundant number, since it is smaller than the sum of its proper divisors (267475520).

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

253686688 is a wasteful number, since it uses less digits than its factorization.

253686688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344716 (or 344708 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The square root of 253686688 is about 15927.5449457850. The cubic root of 253686688 is about 633.0420506028.

The spelling of 253686688 in words is "two hundred fifty-three million, six hundred eighty-six thousand, six hundred eighty-eight".