9925425 has 36 divisors (see below), whose sum is σ = 18363904. Its totient is φ = 5119200.

The previous prime is 9925387. The next prime is 9925439. The reversal of 9925425 is 5245299.

It is a happy number.

It is not a de Polignac number, because 9925425 - 2¹⁷ = 9794353 is a prime.

It is a super-3 number, since 3×9925425³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 9925425.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 6264 + ... + 7686.

Almost surely, 2^9925425 is an apocalyptic number.

It is an amenable number.

9925425 is a deficient number, since it is larger than the sum of its proper divisors (8438479).

9925425 is a wasteful number, since it uses less digits than its factorization.

9925425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470 (or 1462 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 9925425 is about 3150.4642515033. The cubic root of 9925425 is about 214.9065755989.

The spelling of 9925425 in words is "nine million, nine hundred twenty-five thousand, four hundred twenty-five".