9225521 has 8 divisors (see below), whose sum is σ = 9572640. Its totient is φ = 8884512.

The previous prime is 9225499. The next prime is 9225539. The reversal of 9225521 is 1255229.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9225521 - 2¹⁰ = 9224497 is a prime.

It is a super-2 number, since 2×9225521² = 170220475442882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9225221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670 + ... + 4608.

It is an arithmetic number, because the mean of its divisors is an integer number (1196580).

Almost surely, 2^9225521 is an apocalyptic number.

It is an amenable number.

9225521 is a deficient number, since it is larger than the sum of its proper divisors (347119).

9225521 is a wasteful number, since it uses less digits than its factorization.

9225521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055.

The product of its digits is 1800, while the sum is 26.

The square root of 9225521 is about 3037.3542763399. The cubic root of 9225521 is about 209.7314859902.

The spelling of 9225521 in words is "nine million, two hundred twenty-five thousand, five hundred twenty-one".