8257247250 has 192 divisors, whose sum is σ = 25019953920. Its totient is φ = 1805126400.

The previous prime is 8257247231. The next prime is 8257247287. The reversal of 8257247250 is 527427528.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 840366 + ... + 850134.

It is an arithmetic number, because the mean of its divisors is an integer number (130312260).

Almost surely, 2^8257247250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8257247250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12509976960).

8257247250 is an abundant number, since it is smaller than the sum of its proper divisors (16762706670).

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

8257247250 is a wasteful number, since it uses less digits than its factorization.

8257247250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9826 (or 9809 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 42.

The square root of 8257247250 is about 90869.3966635633. The cubic root of 8257247250 is about 2021.2115114202.

The spelling of 8257247250 in words is "eight billion, two hundred fifty-seven million, two hundred forty-seven thousand, two hundred fifty".