9925285 has 4 divisors (see below), whose sum is σ = 11910348. Its totient is φ = 7940224.

The previous prime is 9925283. The next prime is 9925309. The reversal of 9925285 is 5825299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5825299 = 1307 ⋅4457.

It can be written as a sum of positive squares in 2 ways, for example, as 6543364 + 3381921 = 2558^2 + 1839^2 .

It is a cyclic number.

It is not a de Polignac number, because 9925285 - 2¹ = 9925283 is a prime.

It is a super-2 number, since 2×9925285² = 197022564662450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

9925285 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9925283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992524 + ... + 992533.

It is an arithmetic number, because the mean of its divisors is an integer number (2977587).

Almost surely, 2^9925285 is an apocalyptic number.

It is an amenable number.

9925285 is a deficient number, since it is larger than the sum of its proper divisors (1985063).

9925285 is a wasteful number, since it uses less digits than its factorization.

9925285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985062.

The product of its digits is 64800, while the sum is 40.

The square root of 9925285 is about 3150.4420324773. The cubic root of 9925285 is about 214.9055651615.

The spelling of 9925285 in words is "nine million, nine hundred twenty-five thousand, two hundred eighty-five".