8512257072 has 120 divisors (see below), whose sum is σ = 24627767472. Its totient is φ = 2530711040.

The previous prime is 8512257067. The next prime is 8512257077. The reversal of 8512257072 is 2707522158.

It is an interprime number because it is at equal distance from previous prime (8512257067) and next prime (8512257077).

It is a self number, because there is not a number n which added to its sum of digits gives 8512257072.

It is not an unprimeable number, because it can be changed into a prime (8512257077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293998 + ... + 321650.

Almost surely, 2^8512257072 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 8512257072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12313883736).

8512257072 is an abundant number, since it is smaller than the sum of its proper divisors (16115510400).

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

8512257072 is a wasteful number, since it uses less digits than its factorization.

8512257072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27739 (or 27722 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 8512257072 is about 92261.8939324356. The cubic root of 8512257072 is about 2041.8080433553.

The spelling of 8512257072 in words is "eight billion, five hundred twelve million, two hundred fifty-seven thousand, seventy-two".