253208988 has 18 divisors (see below), whose sum is σ = 640056144. Its totient is φ = 84402984.

The previous prime is 253208971. The next prime is 253209007. The reversal of 253208988 is 889802352.

253208988 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×253208988² = 128229583207968288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3516756 + ... + 3516827.

Almost surely, 2^253208988 is an apocalyptic number.

It is an amenable number.

253208988 is an abundant number, since it is smaller than the sum of its proper divisors (386847156).

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

253208988 is a wasteful number, since it uses less digits than its factorization.

253208988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033593 (or 7033588 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 253208988 is about 15912.5418459780. The cubic root of 253208988 is about 632.6444549164.

The spelling of 253208988 in words is "two hundred fifty-three million, two hundred eight thousand, nine hundred eighty-eight".