3215255 has 4 divisors (see below), whose sum is σ = 3858312. Its totient is φ = 2572200.

The previous prime is 3215231. The next prime is 3215257. The reversal of 3215255 is 5525123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5525123 = 887 ⋅6229.

It is not a de Polignac number, because 3215255 - 2¹⁰ = 3214231 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 3215255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215257) 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, 321521 + ... + 321530.

It is an arithmetic number, because the mean of its divisors is an integer number (964578).

Almost surely, 2^3215255 is an apocalyptic number.

3215255 is a deficient number, since it is larger than the sum of its proper divisors (643057).

3215255 is an equidigital number, since it uses as much as digits as its factorization.

3215255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643056.

The product of its digits is 1500, while the sum is 23.

The square root of 3215255 is about 1793.1132144960. The cubic root of 3215255 is about 147.5950550753.

The spelling of 3215255 in words is "three million, two hundred fifteen thousand, two hundred fifty-five".