253985280 has 80 divisors (see below), whose sum is σ = 811983744. Its totient is φ = 67727360.

The previous prime is 253985269. The next prime is 253985309. The reversal of 253985280 is 82589352.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8856 + ... + 24215.

Almost surely, 2^253985280 is an apocalyptic number.

253985280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253985280 is an abundant number, since it is smaller than the sum of its proper divisors (557998464).

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

253985280 is an equidigital number, since it uses as much as digits as its factorization.

253985280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33097 (or 33081 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 253985280 is about 15936.9156363457. The cubic root of 253985280 is about 633.2903190239.

The spelling of 253985280 in words is "two hundred fifty-three million, nine hundred eighty-five thousand, two hundred eighty".