7521332 has 24 divisors (see below), whose sum is σ = 16200576. Its totient is φ = 2975328.

The previous prime is 7521331. The next prime is 7521341. The reversal of 7521332 is 2331257.

It is a junction number, because it is equal to n+sod(n) for n = 7521298 and 7521307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7521331) 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, 9968 + ... + 10695.

It is an arithmetic number, because the mean of its divisors is an integer number (675024).

Almost surely, 2^7521332 is an apocalyptic number.

It is an amenable number.

7521332 is an abundant number, since it is smaller than the sum of its proper divisors (8679244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7521332 is a wasteful number, since it uses less digits than its factorization.

7521332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20687 (or 20685 counting only the distinct ones).

The product of its digits is 1260, while the sum is 23.

The square root of 7521332 is about 2742.5046946177. The cubic root of 7521332 is about 195.9287885132.

Adding to 7521332 its reverse (2331257), we get a palindrome (9852589).

The spelling of 7521332 in words is "seven million, five hundred twenty-one thousand, three hundred thirty-two".