8757225 has 18 divisors (see below), whose sum is σ = 15685566. Its totient is φ = 4670400.

The previous prime is 8757223. The next prime is 8757253. The reversal of 8757225 is 5227578.

8757225 is a `hidden beast` number, since 87 + 572 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 166464 + 8590761 = 408^2 + 2931^2 .

It is not a de Polignac number, because 8757225 - 2¹ = 8757223 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8757225.

It is not an unprimeable number, because it can be changed into a prime (8757223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19236 + ... + 19685.

Almost surely, 2^8757225 is an apocalyptic number.

It is an amenable number.

8757225 is a deficient number, since it is larger than the sum of its proper divisors (6928341).

8757225 is a wasteful number, since it uses less digits than its factorization.

8757225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38937 (or 38929 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 8757225 is about 2959.2608874515. The cubic root of 8757225 is about 206.1209661228.

It can be divided in two parts, 875 and 7225, that added together give a square (8100 = 90²).

The spelling of 8757225 in words is "eight million, seven hundred fifty-seven thousand, two hundred twenty-five".