9525409 has 4 divisors (see below), whose sum is σ = 9535680. Its totient is φ = 9515140.

The previous prime is 9525377. The next prime is 9525413. The reversal of 9525409 is 9045259.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9045259 = 839 ⋅10781.

It is a cyclic number.

It is not a de Polignac number, because 9525409 - 2⁵ = 9525377 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9525419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3589 + ... + 5650.

It is an arithmetic number, because the mean of its divisors is an integer number (2383920).

Almost surely, 2^9525409 is an apocalyptic number.

It is an amenable number.

9525409 is a deficient number, since it is larger than the sum of its proper divisors (10271).

9525409 is a wasteful number, since it uses less digits than its factorization.

9525409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10270.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 9525409 is about 3086.3261331233. The cubic root of 9525409 is about 211.9798322455.

The spelling of 9525409 in words is "nine million, five hundred twenty-five thousand, four hundred nine".