253096280 has 128 divisors (see below), whose sum is σ = 619375680. Its totient is φ = 92897280.

The previous prime is 253096273. The next prime is 253096309. The reversal of 253096280 is 82690352.

It is a Cunningham number, because it is equal to 15909²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 253096280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2609192 + ... + 2609288.

Almost surely, 2^253096280 is an apocalyptic number.

253096280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253096280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309687840).

253096280 is an abundant number, since it is smaller than the sum of its proper divisors (366279400).

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

253096280 is a wasteful number, since it uses less digits than its factorization.

253096280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 253096280 is about 15908.9999685712. Note that the first 4 decimals coincide. The cubic root of 253096280 is about 632.5505737394.

The spelling of 253096280 in words is "two hundred fifty-three million, ninety-six thousand, two hundred eighty".