9572521 has 12 divisors (see below), whose sum is σ = 11312256. Its totient is φ = 7934760.

The previous prime is 9572503. The next prime is 9572527. The reversal of 9572521 is 1252759.

It is not a de Polignac number, because 9572521 - 2⁹ = 9572009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9572527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6016 + ... + 7438.

It is an arithmetic number, because the mean of its divisors is an integer number (942688).

Almost surely, 2^9572521 is an apocalyptic number.

It is an amenable number.

9572521 is a deficient number, since it is larger than the sum of its proper divisors (1739735).

9572521 is a wasteful number, since it uses less digits than its factorization.

9572521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492 (or 1461 counting only the distinct ones).

The product of its digits is 6300, while the sum is 31.

The square root of 9572521 is about 3093.9490946039. The cubic root of 9572521 is about 212.3287367489.

The spelling of 9572521 in words is "nine million, five hundred seventy-two thousand, five hundred twenty-one".