8217025 has 12 divisors (see below), whose sum is σ = 10726000. Its totient is φ = 6227280.

The previous prime is 8217023. The next prime is 8217029. The reversal of 8217025 is 5207128.

It is not a de Polignac number, because 8217025 - 2¹ = 8217023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (8217023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8175 + ... + 9124.

Almost surely, 2^8217025 is an apocalyptic number.

It is an amenable number.

8217025 is a deficient number, since it is larger than the sum of its proper divisors (2508975).

8217025 is a wasteful number, since it uses less digits than its factorization.

8217025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17328 (or 17323 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 8217025 is about 2866.5353652101. The cubic root of 8217025 is about 201.7924296569.

The spelling of 8217025 in words is "eight million, two hundred seventeen thousand, twenty-five".