3533245621 has 8 divisors (see below), whose sum is σ = 3633508800. Its totient is φ = 3434328480.

The previous prime is 3533245619. The next prime is 3533245657. The reversal of 3533245621 is 1265423353.

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

It is a cyclic number.

It is not a de Polignac number, because 3533245621 - 2¹ = 3533245619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3533245601) 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, 331185 + ... + 341686.

It is an arithmetic number, because the mean of its divisors is an integer number (454188600).

Almost surely, 2^3533245621 is an apocalyptic number.

It is an amenable number.

3533245621 is a deficient number, since it is larger than the sum of its proper divisors (100263179).

3533245621 is an equidigital number, since it uses as much as digits as its factorization.

3533245621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673019.

The product of its digits is 64800, while the sum is 34.

The square root of 3533245621 is about 59441.1105296663. The cubic root of 3533245621 is about 1523.0866439838.

Adding to 3533245621 its reverse (1265423353), we get a palindrome (4798668974).

The spelling of 3533245621 in words is "three billion, five hundred thirty-three million, two hundred forty-five thousand, six hundred twenty-one".