8170225 has 12 divisors (see below), whose sum is σ = 11578624. Its totient is φ = 5602320.

The previous prime is 8170223. The next prime is 8170231. The reversal of 8170225 is 5220718.

8170225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8170225 - 2¹ = 8170223 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8170225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8170223) 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, 23169 + ... + 23518.

Almost surely, 2^8170225 is an apocalyptic number.

It is an amenable number.

8170225 is a deficient number, since it is larger than the sum of its proper divisors (3408399).

8170225 is a wasteful number, since it uses less digits than its factorization.

8170225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46704 (or 46699 counting only the distinct ones).

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

The square root of 8170225 is about 2858.3605440882. The cubic root of 8170225 is about 201.4085976396.

It can be divided in two parts, 81 and 70225, that multiplied together give a square (5688225 = 2385²).

The spelling of 8170225 in words is "eight million, one hundred seventy thousand, two hundred twenty-five".