8253557808 has 80 divisors (see below), whose sum is σ = 21893348736. Its totient is φ = 2677742080.

The previous prime is 8253557779. The next prime is 8253557833. The reversal of 8253557808 is 8087553528.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 867091 + ... + 876557.

Almost surely, 2^8253557808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8253557808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10946674368).

8253557808 is an abundant number, since it is smaller than the sum of its proper divisors (13639790928).

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

8253557808 is a wasteful number, since it uses less digits than its factorization.

8253557808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9962 (or 9956 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 51.

The square root of 8253557808 is about 90849.0936003216. The cubic root of 8253557808 is about 2020.9104323261.

The spelling of 8253557808 in words is "eight billion, two hundred fifty-three million, five hundred fifty-seven thousand, eight hundred eight".