3253545021 has 4 divisors (see below), whose sum is σ = 4338060032. Its totient is φ = 2169030012.

The previous prime is 3253545019. The next prime is 3253545049. The reversal of 3253545021 is 1205453523.

3253545021 is digitally balanced in base 2, 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1205453523 = 3 ⋅401817841.

It is not a de Polignac number, because 3253545021 - 2¹ = 3253545019 is a prime.

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 3253545021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3253545011) 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, 542257501 + ... + 542257506.

It is an arithmetic number, because the mean of its divisors is an integer number (1084515008).

Almost surely, 2^3253545021 is an apocalyptic number.

It is an amenable number.

3253545021 is a deficient number, since it is larger than the sum of its proper divisors (1084515011).

3253545021 is a wasteful number, since it uses less digits than its factorization.

3253545021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084515010.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 3253545021 is about 57039.8546719748. The cubic root of 3253545021 is about 1481.7864082860.

Adding to 3253545021 its reverse (1205453523), we get a palindrome (4458998544).

The spelling of 3253545021 in words is "three billion, two hundred fifty-three million, five hundred forty-five thousand, twenty-one".