3505521331 has 8 divisors (see below), whose sum is σ = 3775660560. Its totient is φ = 3235451232.

The previous prime is 3505521319. The next prime is 3505521353. The reversal of 3505521331 is 1331255053.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3505521331 - 2¹⁵ = 3505488563 is a prime.

It is a super-2 number, since 2×3505521331² = 24577359604192023122, 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 3505521331.

It is not an unprimeable number, because it can be changed into a prime (3505521311) 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, 143496 + ... + 166138.

It is an arithmetic number, because the mean of its divisors is an integer number (471957570).

Almost surely, 2^3505521331 is an apocalyptic number.

3505521331 is a deficient number, since it is larger than the sum of its proper divisors (270139229).

3505521331 is a wasteful number, since it uses less digits than its factorization.

3505521331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34565.

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

The square root of 3505521331 is about 59207.4432060700. The cubic root of 3505521331 is about 1519.0924480467.

Adding to 3505521331 its reverse (1331255053), we get a palindrome (4836776384).

The spelling of 3505521331 in words is "three billion, five hundred five million, five hundred twenty-one thousand, three hundred thirty-one".