253289280 has 56 divisors (see below), whose sum is σ = 804196512. Its totient is φ = 67543552.

The previous prime is 253289269. The next prime is 253289287. The reversal of 253289280 is 82982352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253289287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130962 + ... + 132881.

It is an arithmetic number, because the mean of its divisors is an integer number (14360652).

Almost surely, 2^253289280 is an apocalyptic number.

253289280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253289280 is an abundant number, since it is smaller than the sum of its proper divisors (550907232).

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

253289280 is a wasteful number, since it uses less digits than its factorization.

253289280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263863 (or 263853 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 253289280 is about 15915.0645616033. The cubic root of 253289280 is about 632.7113178936.

The spelling of 253289280 in words is "two hundred fifty-three million, two hundred eighty-nine thousand, two hundred eighty".