3205215253 has 4 divisors (see below), whose sum is σ = 3208600800. Its totient is φ = 3201829708.

The previous prime is 3205215199. The next prime is 3205215287. The reversal of 3205215253 is 3525125023.

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.

It is a cyclic number.

It is not a de Polignac number, because 3205215253 - 2²¹ = 3203118101 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 (3205215353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1691353 + ... + 1693246.

It is an arithmetic number, because the mean of its divisors is an integer number (802150200).

Almost surely, 2^3205215253 is an apocalyptic number.

It is an amenable number.

3205215253 is a deficient number, since it is larger than the sum of its proper divisors (3385547).

3205215253 is an equidigital number, since it uses as much as digits as its factorization.

3205215253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385546.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 3205215253 is about 56614.6204879976. The cubic root of 3205215253 is about 1474.4127131275.

The spelling of 3205215253 in words is "three billion, two hundred five million, two hundred fifteen thousand, two hundred fifty-three".