3532531521 has 16 divisors (see below), whose sum is σ = 4917331584. Its totient is φ = 2251480704.

The previous prime is 3532531511. The next prime is 3532531523. The reversal of 3532531521 is 1251352353.

It is a de Polignac number, because none of the positive numbers 2^k-3532531521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3532531523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135475 + ... + 159431.

It is an arithmetic number, because the mean of its divisors is an integer number (307333224).

Almost surely, 2^3532531521 is an apocalyptic number.

It is an amenable number.

3532531521 is a deficient number, since it is larger than the sum of its proper divisors (1384800063).

3532531521 is a wasteful number, since it uses less digits than its factorization.

3532531521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26120.

The product of its digits is 13500, while the sum is 30.

The square root of 3532531521 is about 59435.1034406436. The cubic root of 3532531521 is about 1522.9840273369.

Adding to 3532531521 its reverse (1251352353), we get a palindrome (4783883874).

The spelling of 3532531521 in words is "three billion, five hundred thirty-two million, five hundred thirty-one thousand, five hundred twenty-one".