9057521 has 8 divisors (see below), whose sum is σ = 9906624. Its totient is φ = 8212720.

The previous prime is 9057497. The next prime is 9057533. The reversal of 9057521 is 1257509.

9057521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 9057521 - 2¹⁸ = 8795377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9057571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4715 + ... + 6351.

It is an arithmetic number, because the mean of its divisors is an integer number (1238328).

Almost surely, 2^9057521 is an apocalyptic number.

It is an amenable number.

9057521 is a deficient number, since it is larger than the sum of its proper divisors (849103).

9057521 is a wasteful number, since it uses less digits than its factorization.

9057521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 9057521 is about 3009.5715641931. The cubic root of 9057521 is about 208.4505841673.

The spelling of 9057521 in words is "nine million, fifty-seven thousand, five hundred twenty-one".