9681525 has 60 divisors (see below), whose sum is σ = 20525472. Its totient is φ = 4419360.

The previous prime is 9681499. The next prime is 9681533. The reversal of 9681525 is 5251869.

9681525 = 53³ + 54³ + ... + 82³.

It is a happy number.

It is not a de Polignac number, because 9681525 - 2¹⁰ = 9680501 is a prime.

9681525 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9681525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 13834 + ... + 14516.

Almost surely, 2^9681525 is an apocalyptic number.

It is an amenable number.

9681525 is an abundant number, since it is smaller than the sum of its proper divisors (10843947).

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

9681525 is a wasteful number, since it uses less digits than its factorization.

9681525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 698 counting only the distinct ones).

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

The square root of 9681525 is about 3111.5149043513. The cubic root of 9681525 is about 213.1316385247.

The spelling of 9681525 in words is "nine million, six hundred eighty-one thousand, five hundred twenty-five".