253489280 has 64 divisors (see below), whose sum is σ = 661106880. Its totient is φ = 92175360.

The previous prime is 253489253. The next prime is 253489297. The reversal of 253489280 is 82984352.

It is a tau number, because it is divible by the number of its divisors (64).

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, 10964 + ... + 25043.

It is an arithmetic number, because the mean of its divisors is an integer number (10329795).

Almost surely, 2^253489280 is an apocalyptic number.

253489280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253489280 is an abundant number, since it is smaller than the sum of its proper divisors (407617600).

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

253489280 is a wasteful number, since it uses less digits than its factorization.

253489280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36037 (or 36025 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 253489280 is about 15921.3466767105. The cubic root of 253489280 is about 632.8778060184.

The spelling of 253489280 in words is "two hundred fifty-three million, four hundred eighty-nine thousand, two hundred eighty".