3521225033 has 4 divisors (see below), whose sum is σ = 3557526420. Its totient is φ = 3484923648.

The previous prime is 3521225023. The next prime is 3521225039. The reversal of 3521225033 is 3305221253.

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 2510811664 + 1010413369 = 50108^2 + 31787^2 .

It is a cyclic number.

It is not a de Polignac number, because 3521225033 - 2⁶ = 3521224969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3521224993 and 3521225011.

It is not an unprimeable number, because it can be changed into a prime (3521225039) 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, 18150548 + ... + 18150741.

It is an arithmetic number, because the mean of its divisors is an integer number (889381605).

Almost surely, 2^3521225033 is an apocalyptic number.

It is an amenable number.

3521225033 is a deficient number, since it is larger than the sum of its proper divisors (36301387).

3521225033 is an equidigital number, since it uses as much as digits as its factorization.

3521225033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36301386.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 3521225033 is about 59339.9109621846. The cubic root of 3521225033 is about 1521.3574313470.

Adding to 3521225033 its reverse (3305221253), we get a palindrome (6826446286).

The spelling of 3521225033 in words is "three billion, five hundred twenty-one million, two hundred twenty-five thousand, thirty-three".