3520040533 has 4 divisors (see below), whose sum is σ = 3520683628. Its totient is φ = 3519397440.

The previous prime is 3520040521. The next prime is 3520040539. The reversal of 3520040533 is 3350400253.

It is a happy number.

3520040533 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1752510769 + 1767529764 = 41863^2 + 42042^2 .

It is a cyclic number.

It is not a de Polignac number, because 3520040533 - 2⁹ = 3520040021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3520040498 and 3520040507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520040539) 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, 313266 + ... + 324307.

It is an arithmetic number, because the mean of its divisors is an integer number (880170907).

Almost surely, 2^3520040533 is an apocalyptic number.

It is an amenable number.

3520040533 is a deficient number, since it is larger than the sum of its proper divisors (643095).

3520040533 is an equidigital number, since it uses as much as digits as its factorization.

3520040533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643094.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 3520040533 is about 59329.9294875698. The cubic root of 3520040533 is about 1521.1868231106.

Adding to 3520040533 its reverse (3350400253), we get a palindrome (6870440786).

The spelling of 3520040533 in words is "three billion, five hundred twenty million, forty thousand, five hundred thirty-three".