8021250 has 120 divisors (see below), whose sum is σ = 23392512. Its totient is φ = 1980000.

The previous prime is 8021239. The next prime is 8021257. The reversal of 8021250 is 521208.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8021257) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 258735 + ... + 258765.

Almost surely, 2^8021250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8021250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11696256).

8021250 is an abundant number, since it is smaller than the sum of its proper divisors (15371262).

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

8021250 is a wasteful number, since it uses less digits than its factorization.

8021250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 8021250 is about 2832.1811382749. The cubic root of 8021250 is about 200.1769267718.

Adding to 8021250 its reverse (521208), we get a palindrome (8542458).

The spelling of 8021250 in words is "eight million, twenty-one thousand, two hundred fifty".