3521053531 has 4 divisors (see below), whose sum is σ = 3642469200. Its totient is φ = 3399637864.

The previous prime is 3521053489. The next prime is 3521053553. The reversal of 3521053531 is 1353501253.

3521053531 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3521053531 is a prime.

It is a super-2 number, since 2×3521053531² = 24795635936335135922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3521053531.

It is not an unprimeable number, because it can be changed into a prime (3521053031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60707791 + ... + 60707848.

It is an arithmetic number, because the mean of its divisors is an integer number (910617300).

Almost surely, 2^3521053531 is an apocalyptic number.

3521053531 is a deficient number, since it is larger than the sum of its proper divisors (121415669).

3521053531 is a wasteful number, since it uses less digits than its factorization.

3521053531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121415668.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 3521053531 is about 59338.4658632156. The cubic root of 3521053531 is about 1521.3327316023.

Adding to 3521053531 its reverse (1353501253), we get a palindrome (4874554784).

The spelling of 3521053531 in words is "three billion, five hundred twenty-one million, fifty-three thousand, five hundred thirty-one".