8961525 has 18 divisors (see below), whose sum is σ = 16051490. Its totient is φ = 4779360.

The previous prime is 8961509. The next prime is 8961527. The reversal of 8961525 is 5251698.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2196324 + 6765201 = 1482^2 + 2601^2 .

It is not a de Polignac number, because 8961525 - 2⁴ = 8961509 is a prime.

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 8961525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8961527) 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, 19690 + ... + 20139.

Almost surely, 2^8961525 is an apocalyptic number.

It is an amenable number.

8961525 is a deficient number, since it is larger than the sum of its proper divisors (7089965).

8961525 is a wasteful number, since it uses less digits than its factorization.

8961525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39845 (or 39837 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 8961525 is about 2993.5806319523. The cubic root of 8961525 is about 207.7115469673.

The spelling of 8961525 in words is "eight million, nine hundred sixty-one thousand, five hundred twenty-five".